Differential Diagnosis (DDx) by Location
Differential Diagnosis (DDx) by Signs and Symptoms
1. True or False. The following are potential causes of myelopathy: |
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G7 p.1186:15mm |
a. stenosis, cervical, or thoracic |
true |
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b. anemia, chronic |
true |
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c. Cushing disease |
true |
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d. Lyme disease |
true |
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e. acquired immunodeficiency syndrome (AIDS) |
true |
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2. How does anemia produce myelopathy? |
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G7 p.1186:15mm |
a. chronic: e_____ h_____, b_____ m_____ h_____, and c_____ c_____ |
extramedullary hematopoiesis, bone marrow hypertrophy, and cord compression |
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b. pernicious: s_____ c_____ d_____ |
subacute combined degeneration |
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3. How does Cushing disease produce myelopathy? |
|
G7 p.1186:55mm |
a. e_____ l_____ |
epidural lipomatosis |
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4. True or False. The following are neoplastic masses causing myelopathy, in order of most common to least common: |
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G7 p.1186:95mm |
a. extradural, intradural extramedullary, intramedullary |
true (It follows anatomically outside to inside, most to least common.) |
|
b. intradural extramedullary, extradural, intramedullary |
false |
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c. intramedullary, extradural, intradural extramedullary |
false |
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d. extradural, intramedullary, intradural extramedullary |
false |
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5. What is the frequency of spinal cord tumors? |
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G7 p.1186:96mm and G7 p.728:60mm |
a. Extradural: _____% |
55% |
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b. Intradural extramedullary: _____% |
40% |
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c. Intradural intramedullary: _____% |
5% |
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6. Complete the following regarding spinal cord infarction: |
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G7 p.1186:166mm |
a. The most common artery involved is _____ _____ _____. |
anterior spinal artery |
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b. The most common level of involvement is _____. |
T4 |
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c. Why? |
watershed area |
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d. It spares _____ _____ |
posterior columns |
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e. caused by _____ and |
hypotension |
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f. due to |
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i. ath_____ |
atherosclerosis |
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ii. emb_____ |
embolization |
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iii. cla_____ a_____ |
clamping aorta |
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iv. aor_____ d_____ |
aortic dissection |
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v. s_____ p_____ in the presence of s_____ s_____. |
sitting position in the presence of spinal stenosis |
G7 p.1186:166mm |
7. Necrotizing myelopathy associated with spontaneous thrombosis of a spinal cord arteriovenous malformation (AVM) presenting as spastic → flaccid paraplegia with ascending sensory level is called _____. |
Foix-Alajouanine |
G7 p.1187:50mm |
8. True or False. Regarding acute (idiopathic) transverse myelitis: |
|
G7 p.1187:85mm |
a. Clinical onset is indistinguishable from acute spinal cord compression. |
true |
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b. Normal imaging is expected, including CT, myelogram and MRI. |
true |
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c. Cerebrospinal fluid (CSF) analysis shows pleocytosis and hyperproteinemia. |
true |
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d. The thoracic region is the most common level. |
true |
|
e. The most common onset is 20 to 40 years of age. |
false (Most common onset is first 2 decades of life, other answers define the disease.) |
|
f. Usually results in a diagnosis of multiple sclerosis |
false (MS is diagnosed in only 7%.) |
G7 p.1187:100mm |
9. Abdominal cutaneous reflexes are almost always absent in _____ _____. |
multiple sclerosis |
G7 p.1187:110mm |
10. True or False. Regarding Devic syndrome: |
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G7 p.1187:113mm and G7 p.728:60mm |
a. It is characterized by acute bilateral retinitis and transverse myelitis. |
false (acute bilateral optic neuritis, not retinitis, and myelopathy) |
|
b. The transverse myelitis can be a cause of complete block on myelography. |
true |
|
c. It is more common in Asia than in the United States. |
true |
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d. It is a variant of multiple sclerosis (MS). |
true |
|
11. What is another name for Devic syndrome? |
neuromyelitis optica |
G7 p.1187:114mm |
12. True or False. The following are part of the correct mechanism responsible for pernicious anemia: |
|
G7 p.1187:148mm |
a. malabsorption of B12 in the proximal ileum |
false (malabsorption of B12 in distal ileum) |
|
b. lack of secretion of intrinsic factor by pancreas |
false (lack of secretion by gastric parietal cells) |
|
c. dysfunction of gastric parietal cells |
true (malabsorption of B12 in the distal ileum due to lack of secretion of intrinsic factor, a small polypeptide, by gastric parietal cells) |
|
d. downregulation of cyclic adenosine monophosphate (cAMP)—mediated transport of B12 |
false |
|
13. Matching. Match the disease with the important feature. |
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G7 p.1187:162mm and G7 p.1188:120mm and G7 p.1188:150mm |
Disease: |
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|
G7 p.1187:162mm |
Important feature: |
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a. Ascending weakness |
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b. Atrophic weakness of hands |
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c. Symmetrical paresthesias |
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d. Posterior column involvement |
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e. Normal sensation |
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f. Dementia |
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g. Areflexia |
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h. Serum B12 levels |
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i. Fasciculations |
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j. Shilling test |
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k. Preserved sphincter control |
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l. Treat with B12 |
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m. Proprioception difficulty |
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14. How might AIDS produce myelopathy? |
vacuolization of spinal cord |
|
15. Complete the following about sciatica: |
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G7 p.1188:183mm |
a. The sciatic nerve contains roots from_____ to_____. |
L4 to S3 |
|
b. |
|
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i. The nerve passes out of the_____ |
pelvis |
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ii. through the g_____ s_____ f_____. |
greater sciatic foramen |
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c. |
|
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i. In the lower third of the thigh it divides into the t_____ |
tibial |
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ii. and the c_____ _____ nerves. |
common peroneal |
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16. Complete the following about herpes zoster: |
|
G7 p.1189:87mm |
a. Rarely it might mimic_____. |
radiculopathy |
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b. Lumbosacral dermatomas are involved in_____ to_____%. |
10 to 15% |
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c. Significantly, pain is independent of_____. |
position |
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d. Typical herpetic skin lesions follow pain in_____ to0_____days. |
3 to 8 |
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e. True or False. Motor weakness can occur. |
true |
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f. True or False. Urinary retention can occur. |
true |
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g. If so, it is due to_____ paralysis. |
detrusor |
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h. |
|
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i. If motor symptoms occur_____% have good recovery |
55% |
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ii. and_____% have fair to good recovery. |
30% |
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17. Complete the following regarding differential diagnosis by signs and symptoms: |
|
G7 p.1189:170mm |
a. Pain produced in the sciatic distribution with weakness of external rotation and abduction of the hip is called _____. |
piriformis syndrome due to sciatic nerve entrapment by piriformis muscle. (Symptoms are exacerbated by Freiberg test [forced internal rotation of hip with thigh extension]). |
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b. The Friedberg test consists of forced_____ _____ of _____ |
internal rotation of hip |
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c. and thigh_____. |
extension |
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d. Significance of the Frieberg test is that it_____ the symptoms of the |
exacerbates |
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e. p_____ s_____. |
piriformis syndrome |
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18. Complete the following about extraspinal tumors causing sciatica: |
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G7 p.1190:60mm |
a. Pain is almost always |
|
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i. i_____ |
insidious |
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ii. p_____ |
progressive |
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iii. c_____ |
constant |
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iv. not affected by_____ |
position |
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v. worse at_____ in 80% and |
night |
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vi. not benefited by_____ therapy |
conservative |
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b. Diagnosis is best made by |
|
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i. h_____ |
history |
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ii. r_____ |
radiographs |
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iii. of the entire p_____ |
pelvis |
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iv. and p_____ f_____ |
proximal femur |
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19. Femoral neuropathy is often mistakenly identified as a radiculopathy at what level? |
L4 |
G7 p.1190:120mm |
20. Answer the following about femoral neuropathy: |
|
G7 p.1190:125mm |
a. Femoral neuropathy may be mistaken for radiculopathy at what level? |
L4 |
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b. That mistake can occur because both share weakness of the _____ muscle. |
quadriceps |
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c. That mistake should be avoided because sensory distribution is different. |
|
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i. Femoral nerve serves the_____ _____. |
anterior thigh |
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ii. L4 serves the knee to the_____ _____ and |
medial malleolus |
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iii. spares the_____ _____ motor weakness is different. |
anterior thigh |
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iv. Femoral nerve has weak_____. |
iliopsoas |
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v. Femoral nerve has strong_____ _____. |
thigh adductors |
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vi. L4 has strong_____. |
iliopsoas |
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vii. L4 has weak_____ _____. |
thigh adductors |
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21. Peroneal nerve palsy may be mistaken for radiculopathy at what level? |
L5 |
G7 p.1190:133mm |
22. Complete the following regarding differential diagnosis by signs and symptoms: |
|
G7 p.1191:32mm |
a. Congenital degeneration of anterior horn cells leading to weakness, areflexia, tongue fasciculations, with normal sensation is W_____-H_____ d_____ |
Werdnig-Hoffmann disease |
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b. also known as s_____ m_____a_____ |
spinal muscular atrophy |
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c. also known as f_____ i_____ s_____ |
floppy infant syndrome |
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23. The most common etiology for pure motor hemiplegia without sensory loss is |
G7 p.1192:50mm | |
a. l_____ i_____ of the |
lacunar infarct |
|
b. c_____ i_____ c_____. |
contralateral internal capsule |
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24. Can hypoglycemia be associated with hemiparesis? |
yes, treat with glucose— hemiparesis may clear |
G7 p.1192:68mm |
25. Complete the following about back pain: |
|
G7 p.1192:120mm |
a. Will patients with abdominal or vascular etiology of back pain keep still, or writhe in pain? |
writhe in pain |
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i. example: a_____ a_____ a_____ |
abdominal aortic aneurysm |
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b. Pain at bed rest. Think:_____ _____ |
spine tumor |
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c. Relieved by aspirin. Think:_____ osteoid osteoma |
|
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d. Back pain on percussion. Think:_____ |
infection |
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26. Complete the following regarding differential diagnosis by signs and symptoms: |
|
G7 p.1192:145mm |
a. Nocturnal back pain relieved by aspirin is suggestive of _____ _____. |
osteoid osteoma (or benign osteoblastoma) |
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b. Morning back stiffness, hip pain, hip swelling, failure to get relief at rest, and improvement with exercise is suggestive of_____ or_____ _____. |
sacroiliitis or early ankylosing spondylitis |
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27. Complete the following regarding cauda equina. Cauda equina syndrome has the following criteria: |
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G7 p.1193:62mm |
a. p_____ a_____ |
perineal anesthesia |
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b. u_____ i_____ |
urinary incontinence |
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c. p_____ w_____ |
progressive weakness |
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28. Complete the following regarding annular tears: |
|
G7 p.1193:103mm |
a. assymptomatic in 50- to 60-year-old patients in _____% |
40% |
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b. assymptomatic in 60- to 70-year-old patients in _____% |
75% |
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29. Complete the following regarding Schmorl nodes: |
|
G7 p.1193:179mm |
a. defined as d_____ h_____ |
disc herniation |
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b. through the c_____ e_____ p_____ |
cartilaginous end plate |
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c. into the v_____ b_____ |
vertebral body |
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d. seen in_____% of asymptomatic patients |
19% |
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30. Complete the following about chronic low back pain: |
|
G7 p. 1194:19mm |
a. Symptoms persist after 3 months in_____%. |
5% |
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b. Structural diagnosis is possible in only_____% of these. |
50% |
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c. Erosive changes adjacent to sacroiliac (SI) joint and positive test for human leukocyte antigen-B27 (HLA-B27) suggest the diagnosis of a_____ s_____. |
ankylosing spondylitis |
G7 p. 1194:40mm |
d. In foot drop of unknown etiology, which muscle strength tests help differentiate peroneal nerve palsy from L4/L5 radiculopathy? |
|
G7 p. 1194:85mm |
i. p_____ t_____ (f_____ i_____) |
posterior tibialis (foot inversion) |
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ii. g_____ m_____ (i_____ r_____ f_____ h_____) |
gluteus medius (internal rotation flexed hip)( Both are spared in a peroneal nerve palsy, and both are involved with radiculopathy.) |
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e. Which division of the sciatic nerve is more sensitive to injury, the peroneal or the tibial division? |
peroneal division is more sensitive to injury |
G7 p. 1195:16mm |
31. For a patient with foot drop, lesion could be at |
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G7 p.1195:26mm |
a. main trunk of_____ _____ |
sciatic nerve |
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b. p_____ d_____ |
peroneal division |
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c. L_____ or L_____ radiculopathy |
L4 or L5 |
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d. c_____ p_____ nerve |
common peroneal |
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e. s_____ p_____ nerve |
superficial peroneal |
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f. d_____ p_____ nerve |
deep peroneal |
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32. Study Chart. Examine the following functions tests and the muscles for a patient with foot drop: |
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G7 p.1195:27mm |
a. Adduct thigh |
Adductors L2-3 |
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b. Extend knee |
Quadriceps L2-3-4 |
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c. Internally rotate thigh |
Gluteus medius L4-5 S1 |
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d. Dig heel into bed |
Gluteus maximus L5 S1-2 |
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e. Flex knee with thigh flexed |
Biceps femoris L5 S1-2 |
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f. Foot planter flexion |
Gastrocnemius |
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g. Invert plantar flexed foot |
Tibialis posterior L4-5 |
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h. Evert foot |
Peroneus longus and brevis L5 S1 |
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33. Adduct thigh. |
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G7 p.1195:35mm |
a. Utilizes_____ muscles |
adductor |
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b. Nerve:_____ |
obturator |
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c. Roots:_____ |
L2, 3 |
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d. If weak means lesion includes more than the_____ _____ |
sciatic roots |
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34. Extend knee. |
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G7 p.1195:35mm |
a. Utilizes_____ muscles |
quadriceps |
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b. Nerve:_____ |
femoral |
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c. Root:_____ |
L2, 3, 4 |
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d. If weak means lesion includes more than_____ _____ |
sciatic roots |
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35. Internally rotate thigh. |
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G7 p.1195:62mm |
a. Utilizes_____ _____ muscles |
gluteus maximus |
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b. Nerve:_____ |
superior gluteal |
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c. Root:_____ |
L4, 5, S1 |
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d. If weak means lesion is very_____ |
proximal |
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36. Dig heel into bed. |
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G7 p.1195:62mm |
a. Utilizes_____ _____ muscles |
gluteus maximus |
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b. Nerve:_____ |
inferior gluteal |
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c. Roots:_____ _____ and_____ |
L5-S1, 2 |
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d. If weak the injury is very_____ |
proximal |
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37. Flex knee with thigh flexed. |
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G7 p.1195:76mm |
a. Utilizes_____ _____ muscles |
lateral hamstrings |
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b. Nerve: _____ |
sciatic |
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c. Roots:_____ _____ and_____ |
L5, S1, 2 |
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d. If weak there is injury to the_____ _____ |
sciatic nerve |
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38. Foot plantar flexion. |
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G7 p.1195:76mm |
a. Utilizes_____ _____ muscles |
gastrocnemius |
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b. Nerve:_____ |
sciatic |
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c. Roots:_____ |
L5 |
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d. If weak there is injury to the_____ _____ |
sciatic nerve |
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39. Invert plantar flexed foot. |
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G7 p.1195:92mm |
a. Utilizes_____ _____ muscles |
posterior tibial |
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b. Nerve:_____ |
tibial |
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c. Roots:_____ and_____ |
L4, 5 |
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d. If weak there is injury to the_____ _____ |
tibial nerve |
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e. If strong but there is foot drop, it means that there is injury distal to the take-off of the_____ _____ |
common peroneal |
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40. Evert the foot. |
|
G7 p.1195:92mm |
a. Utilizes_____ _____ muscles |
peroneus longus and brevis |
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b. Nerve:_____ |
superficial peroneal |
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c. Roots:_____ and _____ |
L5, S1 |
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d. Preservation of these with foot drop means lesion is in the _____ _____ nerve |
deep peroneal |
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41. What are ways to differentiate foot drop from injury to the |
|
G7 p.1195:162mm |
a. deep peroneal nerve? |
|
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i. motor weakness manifests by_____ _____ |
foot drop (weak foot extension) |
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ii. muscle that is weak is the_____ _____ |
anterior tibial (dorsiflexion) |
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iii. sensory loss_____ _____ |
web space |
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b. common peroneal nerve? |
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i. deficit is a _____ _____ |
foot drop |
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ii. muscles involved are a_____ t_____ and p_____ l_____ and b_____ |
anterior tibial and peroneus longus and brevis |
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iii. weakness of_____ and_____ _____ |
eversion and foot drop |
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iv. sensory loss of_____ _____ and _____ |
lateral leg and foot |
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42. List the ways to differentiate. |
|
G7 p.1195:182mm |
a. plexus lesions on electromyography (EMG) _____ _____ |
paraspinals normal |
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b. root lesion on EMG_____ _____ |
paraspinals abnormal |
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c. superficial peroneal nerve |
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i. motor weakness of _____ |
eversion |
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ii. muscles that are weak are the_____ _____ and_____ |
peroneus longus and brevis |
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iii. Any foot drop? |
no |
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iv. sensory loss at the_____ _____ and_____ |
lateral leg and foot |
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43. Complete the following regarding differential diagnosis by signs and symptoms: |
|
G7 p.1196:29mm |
a. Painless foot drop is likely due to_____ _____. |
peroneal palsy |
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b. Painful foot drop is likely due to_____. |
radiculopathy |
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c. Painless foot drop with no sensory loss could be due to _____ _____. |
parasagittal lesion |
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d. If so how might the reflexes be? |
hyperactive |
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e. This is called the_____ _____ _____. |
spastic foot drop |
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44. A central nervous system (CNS) cause of foot drop is |
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G7 p.1196:60mm |
a. the result of a_____ lesion |
parasagittal |
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b. and may produce a_____ reflex |
Babinski |
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c. or a hyperactive_____ reflex. |
Achilles (= spastic foot drop) |
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45. Complete the following regarding symptoms in the hands: |
|
G7 p.1196:155mm |
a. Central cord syndrome shows more involvement in_____ than_____. |
UE; LE |
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b. Syringomyelia has b_____ d_____ in the hands. |
burning dysesthesias |
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46. Complete the following regarding lesion location and findings in “cruciate paralysis”: |
|
G7 p.1196:180mm |
a. Physical exam shows_____ |
atrophy of hands |
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b. due to pressure on the_____ |
pyramidal decussations |
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c. at the level of the_____. |
foramen magnum |
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47. Complete the following about radiculopathy, upper extremity: |
|
G7 p.1197:120mm |
a. The “empty can” test suggests s_____ p_____. |
shoulder pathology |
|
b. Interscapular pain suggests c_____ r_____. |
cervical radiculopathy |
G7 p.1197:135mm |
48. Myocardial infarction (MI) may present with symptoms similar to a radiculopathy at what level? |
left C6 |
G7 p.1197:142mm |
49. Matching. Match the symptom with the position of the disc most likely to produce it. Disc: |
|
G7 p.1198:23mm |
a. pain |
|
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b. myelopathy |
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c. bilateral symptoms |
|
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d. upper extremity symptoms |
|
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e. lower extremity symptoms |
|
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f. numb clumsy hands |
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50. Electric shock-like sensation radiating up or down the spine, usually with flexion and attributed to dysfunction of posterior columns is called the_____. |
Lhermitte sign |
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51. True or False. Lhermitte’s sign can be seen in Hint: mc5rs |
|
G7 p.1198:180mm |
a. multiple sclerosis |
true |
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b. cervical spondylosis |
true |
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c. cervical disc |
true |
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d. cervical cord tumor |
true |
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e. Chiari I |
true |
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f. central cord syndrome |
true |
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g. radiation myelopathy |
true |
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h. subacute combined degeneration |
true |
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52. Complete the following regarding one or more episodes of brief loss of consciousness (LOC): |
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G7 p.1199:70mm |
a. referred to as s_____ |
syncope |
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b. prevalence is_____ |
≈ 50% (higher in elderly) |
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c. presumed etiology is_____ |
vasovagal |
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53. What are the causes of syncope? |
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G7 p.1199:112mm |
a. Disorder of AV node conduction is called_____ |
Stokes-Adams |
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b. Tight short collar, shaving, passing out is called_____ |
carotid sinus syncope |
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c. Fainting aka_____ syncope |
neurocardiogenic |
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d. |
|
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i. Micturition, cough called_____ |
triggered syncope |
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ii. Usually associated with elevation of_____-_____ pressure |
intra-thoracic |
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e. Orthostatic hypotension defined as a drop in BP of_____mm Hg on standing |
25 |
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f. Unknown etiology occurs in_____% |
40% |
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54. Complete the following about transient neurological deficit (TIA): |
|
G7 p.1200:175mm |
a. By definition it lasts less than_____ hours |
24 |
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b. but usually subsides within_____. |
20 minutes |
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c. They are_____. |
temporary |
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d. They are a result of_____. |
ischemia |
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55. Complete the following regarding the etiology of diplopia secondary to VI nerve palsy: |
|
G7 p.1201:85mm |
a. i_____ _____ _____ |
↑ ICP (pseudotumor cerebri) |
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b. s_____ _____ |
sphenoid sinusitis |
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c. t_____ |
tumor/mass etc. |
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56. Complete the following regarding transient ischemic attacks (TIAs): |
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G7 p.1200:175mm |
a. By definition TIAs last less than_____. |
24 hours |
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b. Most resolve within_____. |
20 minutes |
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c. Migraine paresis differs from TIA in that it_____ over several minutes. |
progresses (marches) |
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d. TIA-like symptoms from cerebral amyloid angiopathy (CAA) require avoidance of_____ or_____ drugs |
antiplatelet or anticoagulation |
G7 p.1201:29mm |
e. because the CAA patient is more prone to_____. |
hemorrhage |
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57. Complete the following about anosmia: |
|
G7 p.1202:80mm |
a. Most common cause is s_____ r_____ infection. |
severe respiratory |
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b. |
|
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i. Second most common cause is_____ _____. |
head injury |
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ii. For severe such cases_____ to_____% occurence. |
7 to 15% |
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58. Complete the following about cranial neuropathies: |
|
G7 p.1202:52mm |
a. Congenital facial diplegia is also known as_____. |
Möbius syndrome |
|
b. It affects which half of the face more? |
Upper |
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c. True or False. It may also involve other cranial nerves. If so, which ones? |
true CN VI, III, or XII |
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d. Lyme disease can cause_____. |
unilateral or bilateral seventh nerve palsy |
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e. Affects which half of the face? |
lower (as in Bell palsy) |
|
f. True or False. It may also involve other cranial nerves. |
false |
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59. Complete the following about cavernous sinus syndrome: |
|
G7 p.1204:60mm |
a. A cavernous sinus aneurysm can compress the third nerve and cause_____ |
diplopia |
|
b. due to_____. |
ophthalmoplegia |
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c. In this form of third nerve palsy the pupil will be_____ |
not dilated |
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d. because the_____ that dilate the pupil |
sympathetics |
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e. are_____. |
also paralyzed |
|
60. Complete the following about osteopetrosis: |
|
G7 p.1204:75mm |
a. It is also known as_____ |
marble bone |
|
b. a_____ disorder |
genetic |
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c. of defective_____ resorption of bone |
osteoclastic |
|
d. resulting in increased_____ _____. |
bone density |
|
e. The most common neurologic manifestation is_____. |
blindness |
|
f. Treatment consists of bilateral_____ _____decompression. |
optic nerve |
|
61. Complete the following about monocular blindness: |
|
G7 p1204:178mm |
a. Giant cell arthritis aka t_____a_____ |
temporal arthritis |
|
b. Usually due to ischemia of the |
|
|
i. o_____ n_____ or |
optic nerve |
|
ii. o_____ t_____ |
optic tract |
|
iii. less likely the c_____ r_____artery |
central retinal |
|
62. Complete the following about exophthalmos: |
|
G7 p. 1205:73mm |
a. aka p_____ |
proptosis |
|
b. Following trauma, think: c_____c_____ fistula |
carotid cavernous |
|
c. Following frontal-orbital surgery, think:_____ in_____ _____ |
defect in orbital roof |
|
63. Complete the following about arachnoid cyst: |
|
G7 p.1207:40mm Also see |
a. aka_____ _____ |
leptomeningeal cyst |
G7 p. 222 |
b. Due to a d_____ of the_____ |
duplication; arachnoid |
|
c. Reach maximum size in_____ _____ |
1 month |
|
d. Need surgery in about_____% |
30% |
|
64. Complete the following regarding differential diagnosis by signs and symptoms: |
|
G7 p.1208:87mm |
a. Hemifacial spasm may produce tinnitus because of s_____ m_____spasms. |
stapedial muscle |
|
b. High cervical lesion may cause facial sensory changes due to compression of the s_____ t_____ t_____ |
spinal trigeminal tract |
G7 p.1208:40mm |
c. at cervical levels down to_____. |
C2-C4 |
|
d. Causes of mutism include injury to |
|
|
i. f_____l_____ |
frontal lobes |
|
ii. c_____g_____ |
cingulate gyrus |
|
iii. c_____c_____t_____ |
corpus callosum plus thalamus |
|
iv. c_____ |
cerebellum |
|
e. Swallowing difficulties can be caused by ossification of the_____ _____ _____. |
anterior longitudinal ligament |
|
65. Complete the following about CPA lesions: |
|
G7 p.1210:133mm |
Hint: amem |
|
|
a. |
|
|
i. Acoustic neuroma more accurately known as v_____s_____ |
vestibular schwannoma |
|
ii. Occurs in_____to_____% |
80 to 90% |
|
b. Meningioma occurs in_____to_____%. |
5 to 10% |
|
c. Epidermoid occurs in_____to_____%. |
5 to 7% |
|
d. Metastatic_____ |
rarely |
|
66. Matching. Match the characteristic with the condition. |
|
G7 p.1211:120mm |
Condition: |
|
|
|
|
|
|
|
|
Characteristic: |
|
|
a. Hearing loss occurs early in_____. |
|
|
b. Facial weakness occurs early in_____. |
|
|
c. Internal auditory canal (IAC) is enlarged in_____. |
|
|
d. Calcification is seen in_____. |
|
|
e. It represents 90% of cerebellopontine angle (CPA) tumors. |
|
|
f. It represents 5 to 10% of CPA tumors. |
|
|
67. Complete the following about posterior fossa tumor: |
|
G7 p.1209:134mm |
a. Most likely a solitary lesion in an adult is a_____. |
metastasis |
|
b. Most likely primary tumor is the_____. |
hemangioblastoma |
|
c. Radiologic characteristics include |
|
|
i. v_____n_____ |
vascular nodule |
|
ii. c_____ |
cyst |
|
iii. s_____ _____on_____ |
serpentine vessels on surface |
|
d. The tumor that is common in young adults is p_____a_____. |
pilocytic astrocytoma |
|
68. Complete the following regarding differential diagnosis by location: |
|
G7 p.1210:60mm |
a. The modern name for medulloblastoma is_____ _____ _____. |
primitive neuroectodermal tumor (PNET) |
|
b. It usually begins at the_____, |
fastigium |
|
c. which is located at the_____. |
roof of the fourth ventricle |
|
d. The consistency is_____. |
solid |
|
69. For posterior fossa tumors in children, give types and percentage. |
|
G7 p.1210:87mm |
a. a_____ (p_____),_____% |
astrocytoma (pilocytic), 27% |
|
b. b_____ _____ _____,_____% |
brain stem glioma, 28% |
|
c. P_____(i.e., m_____),_____% |
PNET (i.e., medulloblastoma), 27% |
|
70. Complete the following about atlantoaxial subluxation: |
|
G7 p.1230:144mm |
a. Incompetence of the_____ligament |
transverse |
|
b. Results in increased_____ _____interval |
atlantodental |
|
71. Complete the following regarding differential diagnosis by location: |
|
G7 p.1231:23mm |
a. Morquio syndrome is hypoplasia of the_____ |
dens |
|
b. due to a m_____. |
mucopolysaccharidosis |
|
c. It may result in_____subluxation. |
atlantoaxial |
|
72. Complete the following about multiple intracranial lesions on CT or MRI: |
|
G7 p.1212:103mm |
a. Glioma—what % are multicentric?_____% |
6% |
|
b. Herpes simplex usually occurs in the_____lobe. |
temporal |
G7 p.1213:117mm |
c. MS lesions are p_____. |
periventricular |
G7 p.1213:25mm |
d. Dural sinus thrombosis cause multiple_____ _____. |
venous infarcts |
G7 p.1213:721mm |
e. Multiple hypertensive hemorrhages is likely_____ _____. |
amyloid angiopathy |
G7 p.1213:110mm |
73. Name the ring-enhancing lesions on computed tomography and magnetic resonance imaging (CT/MRI). |
|
G7 p.1214:100mm |
Hint: haam |
|
|
a. h_____ |
hematoma |
|
b. a_____ |
astrocytoma |
|
c. a_____ |
abscess |
|
d. m_____ |
metastases |
|
74. Complete the following about ring-enhancing lesions on CT/MRI: |
|
G7 p.1214:100mm |
a. A continuous ring suggests r_____h_____. |
resolving hematoma |
|
b. An interrupted ring suggests m_____. |
malignancy |
|
75. List the conditions that cross the corpus callosum. |
|
G7 p.1215:70mm |
Hint: ms-glld |
|
|
a. m_____ s_____ |
multiple sclerosis |
|
b. g_____ |
glioblastoma |
|
c. l_____ |
lymphoma (primary CNS) |
|
d. l_____ |
lipoma |
|
e. d_____ |
diffuse axonal injury |
|
76. Complete the following regarding sellar and parasellar lesions: |
|
G7 p.1215:95mm |
a. Adults: most common is_____ _____ |
pituitary adenoma |
|
b. |
|
|
i. Children: most common are c_____ |
craniopharyngioma |
|
ii. and g_____ |
germinoma |
|
77. Complete the following regarding sellar lesions: |
|
G7 p.1215:150mm |
a. Pituitary pseudotumor is due to_____, |
hypothyroidism |
|
b. which causes chronic pituitary stimulation by_____-_____ _____. |
thyrotropin-releasing hormone |
|
78. Germ cell tumors in the suprasellar area are |
|
G7 p.1215:150mm |
a. more common in_____. |
women |
|
b. have a triad of |
|
|
i. d_____ _____ |
diabetes insipidus |
|
ii. v_____ _____ _____ |
visual field defects |
|
iii. p_____ |
panhypopituitarism |
|
79. Complete the following about juxtasellar masses: |
|
G7 p.1216:16mm |
a. Craniopharyngioma |
|
|
i. In this region account for_____% of tumors in adults |
20% |
|
ii. and_____% in children |
54% |
|
b. Meningioma. To differentiate from pituitary macroadenoma use gadolinium. Meningiomas have: |
|
|
i. b_____h_____ e_____ |
bright homogeneous enhancement |
|
ii. Epicenter is_____ |
suprasellar |
|
iii. Tapered extension aka_____ _____ |
dural tail |
|
iv. Sella is usually_____ _____ |
not enlarged |
|
v. Rarely produce_____disturbances |
endocrine |
|
vi. Tend to_____carotid artery |
encase |
|
80. True or False. Regarding lymphocytic hypophysitis: |
|
G7 p.1212:15mm |
a. It is rare. |
true |
|
b. It may cause hypopituitarism. |
true |
|
c. Most cases occur in women. |
true |
|
d. It tends to selectively affect a single hormone. |
true |
|
e. It requires surgery. |
false (self-limiting or Rx with steroids) |
|
f. It may produce diabetes insipidus (DI). |
true |
|
81. Complete the following about cavum septum pellucidum (CSP): |
|
G7 p.1218:45mm |
a. It is present in all_____ _____. |
premature babies |
|
b. Adults have them in_____%. |
10% |
|
c. It is commonly seen in_____. |
boxers |
|
82. Complete the following about cavum vergae: |
|
G7 p.1218:45mm |
a. posterior to_____ |
CSP |
|
b. often communicates with the_____ |
CSP |
|
83. Complete the following about cavum velum interpositum: |
|
G7 p.1218:45mm |
a. due to separation of the_____ |
crura |
|
b. of the_____ |
fornix |
|
c. with the_____above and |
thalami |
|
d. the_____ _____ below |
third ventricle |
|
e. present under 1 year of age in_____% |
60% |
|
f. present between 1 and 10 years old in_____% |
30% |
|
84. True or False. The most common benign primary intraorbital neoplasm is |
|
G7 p.1218:128mm |
a. capillary hemangioma |
false |
|
b. lymphangioma |
false |
|
c. optic nerve sheath meningioma |
false |
|
d. cavernous hemangioma |
true |
|
e. optic glioma |
false |
|
85. Matching. Match characteristics of orbital lesions with pathology (may match with more than one). |
|
G7 p.1218:145mm |
Pathology: |
|
|
|
|
|
Characteristic: |
|
|
a. infantile proptosis |
|
|
b. regresses spontaneously |
|
|
c. does not regress |
|
|
d. painless proptosis |
|
|
e. bilateral (80% of the time) |
|
|
86. The most common primary ocular malignancy of childhood is_____. |
melanoma |
G7 p.1218:152mm |
87. Complete the following about skull lesions: |
|
G7 p.1220:27mm |
a. Multiplicity suggests_____. |
malignancy, especially if six or more |
|
b. Expansion of diploë suggests_____. |
a benign lesion |
|
c. Peripheral sclerosis suggests_____. |
a benign lesion |
|
d. Full-thickness lesions suggest_____. |
malignancy |
|
e. Sharply demarcated, punched-out defects suggest_____. |
myeloma |
|
88. Complete the following about skull lesions: |
|
G7 p.1220:80mm |
a. Name the skull lesion that shows a |
|
|
i. trabecular pattern |
hemangioma |
G6 p.930:120mm |
ii. sunburst pattern |
hemangioma |
|
iii. islands of bone pattern |
fibrous dysplasia |
|
iv. site of tenderness to palpation |
eosinophilic granuloma |
|
b. Another name for Paget disease that is only osteolytic is_____ _____. |
osteoporosis circumscripta |
G7 p.1221:87mm |
c. Eosinophilic granuloma is the mildest form of_____ _____. |
histiocytosis X |
|
89. Complete the following about skull lesions: |
|
G7 p.1223:35mm |
a. There is no_____lesion |
intra-axial |
|
b. that grows out of the_____. |
skull |
|
90. Choroid plexus calcification has the following characteristics: |
|
G7 p.1224:45mm |
a. % calcified between age 40 and 50 is_____ |
75% |
|
b. rare under age_____ |
3 |
|
c. Under age 10 consider choroid plexus_____. |
papilloma |
|
d. If you see calcified choroid plexus in the temporal horn consider_____. |
neurofibromatosis |
|
91. Complete the following about basal ganglia calcifications: |
|
G7 p.1224:55mm |
a. Are common in the_____ |
elderly |
|
b. May be due to_____ |
hyperparathyroidism |
|
c. Or long-term use of_____ |
anticonvulsants |
|
d. Or_____disease |
Fahr |
|
e. Correlated with psychiatric diseases if >_____cm |
0.5 |
|
92. Complete the following about Fahr disease: |
|
G7 p.1224:75mm |
a. Cause is_____ |
idiopathic |
|
b. Course is_____ |
progressive |
|
c. What do we see in x-rays? |
intracranial calcifications |
|
d. Where? |
|
|
i. b_____ g_____ |
basal ganglia |
|
ii. s_____ |
sulci |
|
iii. d_____n_____ |
dentate nuclei |
|
93. What are the characteristics of intraventricular lesions? Which: |
|
G7 p.1224:150mm |
a. is most common? |
astrocytoma |
|
b. is at foramen of Monro? |
colloid cyst |
|
c. has punctate calcification? |
craniopharyngioma |
|
d. fills the fourth ventricle? |
medulloblastoma |
|
e. is the most common fourth ventricle low density lesion? |
epidermoid |
|
f. has free-floating fat in ventricles? |
dermoid |
|
g. has fat and calcification? |
teratoma |
|
h. is at the septum pellucidum? |
central neurocytoma |
|
94. Intraventricular meningiomas are fed by the |
|
G7 p.1224:180mm |
a. a_____ c_____ a_____ |
anterior choroidal artery |
|
b. and less commonly by the |
|
|
i. m_____ p_____ c_____a_____ medial posterior choroidal artery |
|
|
ii. l_____ p_____ c_____a_____ |
lateral posterior choroidal artery |
|
c. and are thought to arise from the _____ _____ _____. |
arachnoidal cap cells |
|
95. True or False. The following intraventricular lesion is least likely to be found in the frontal horn: |
|
G7 p.1225:130mm |
a. astrocytoma |
false |
|
b. meningioma |
false |
|
c. dermoid |
false |
|
d. choroid plexus papilloma |
true |
|
96. Matching. Match most common tumor type with location. |
|
G7 p.1225:125mm |
Location: |
|
|
Tumor type: |
|
|
a. Colloid cyst |
|
|
b. Medulloblastoma |
|
|
c. Meningioma |
|
|
d. Ependymoma |
|
|
e. Astrocytoma |
|
|
f. Choroid plexus papilloma |
|
|
g. Choroid plexus carcinoma |
|
|
h. Subependymoma_____ or_____ |
|
|
i. teratoma |
|
|
97. Complete the following about tumors within the lateral ventricles. In adults all enhance except |
|
G7 p.1226:65mm |
a. c_____ and the |
cysts |
|
b. s_____. |
subependymoma |
|
98. Periventricular enhancing mass lesions. First consideration should be _____. |
lymphoma |
G7 p.1227:138mm |
99. With periventricular low density, consider: |
|
G7 p.1227:138mm |
a. t_____ edema |
transependymal |
|
b. m_____ s_____ |
multiple sclerosis |
|
c. acute arteriosclerotic encephalopathy aka_____ _____ |
Binswanger disease |
|
d. leukoaraiosis |
|
|
i. representing_____ _____ |
normal aging |
|
ii. or w_____ i_____ |
watershed infarction |
|
100. Ependymal enhancement can be due to |
|
G7 p.1227:142mm |
a. v_____ |
ventriculitis (pyogenic or viral) |
|
b. l_____ |
lymphoma |
|
c. m_____ |
metastasis |
|
d. g_____ |
granuloma (TB) |
|
101. What does the pattern of enhancement suggest? |
|
G7 p.1228:35mm |
a. Thin linear suggests v_____. |
virus (CMV) |
|
b. Nodular suggests l_____. |
lymphoma |
|
102. Complete the following about intraventricular hemorrhage: |
|
G7 p.1228:95mm |
a. Extension from |
|
|
i. t_____ in hypertensive adult |
thalamus |
|
ii. p_____ in hypertensive adult |
putamen |
|
iii. s_____ in premature newborn |
subependyma |
|
b. True or False. Occurs commonly with aneurysm of the |
|
|
i. MCA |
false |
|
ii. A-comm |
true |
|
iii. P-comm |
false |
|
iv. distal basilar |
false |
|
v. vein of Galen |
false |
|
vi. carotid bifurcation |
true |
|
vii. pericallosal |
false |
|
viii. vertebral |
true |
|
ix. PICA |
true |
|
x. dissecting vertebral type |
true |
|
103. The most common medial temporal lobe lesions are |
|
G7 p.1128:145mm |
a. h_____ |
hamartoma |
|
b. m_____ t_____ s_____ mesial temporal sclerosis |
|
|
c. g_____ |
glioma (low grade) |
|
104. True or False. Esthesioneuroblastoma most commonly presents with |
|
G7 p.1230:42mm |
a. pain |
false |
|
b. nasal obstruction |
false |
|
c. epistaxis |
true |
|
d. tearing |
false |
|
e. proptosis |
false |
|
105. To differentiate: |
|
G7 p.1230:80mm |
|
|
|
|
|
|
a. pulsatile |
|
|
b. swells with Valsalva |
|
|
c. hypertelorism |
|
|
d. attachment to CNS |
|
|
106. Destructive spondylo-arthropathy is |
|
G7 p.1233:30mm |
a. the name for bone changes seen in c_____ r_____ f_____. |
chronic renal failure |
|
b. It resembles i_____. |
infection |
|
107. True or False. Destruction of the disc space is highly suggestive of |
|
G7 p.1233:70mm |
a. tumor |
false |
|
b. infection |
true |
|
c. degenerative disease |
false |
|
d. metabolic disease |
false |
|
108. Matching. Match the destructive lesion of the spine with its cause. |
|
G7 p.1233:71mm |
Cause: |
|
|
a. Destruction of disc space suggests_____. |
|
|
b. Disc space not destroyed suggests _____. |
|
|
c. Single-level involvement suggests _____. |
|
|
d. Multiple-level involvement suggests _____. |
|
|
e. Dense vertebra on x-ray suggests _____. |
|
|
109. True or False. Pott disease is confined to the disc space. |
false (The disc may be relatively resistant to tuberculous involvement.) |
G7 p.1233:88mm |

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