Interhemispheric Fissure Cysts Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Pineal Cyst Less Common Callosal Dysgenesis Neurocysticercosis Arachnoid Cyst Rare but Important Holoprosencephaly (HPE) Medial Atrial Diverticulum Atretic Cephalocele…
Foramen Magnum Mass Karen L. Salzman, MD DIFFERENTIAL DIAGNOSIS Common Acquired Tonsillar Herniation Dolichoectasia (Vertebrobasilar) Chiari 1 Chiari 2 Diffuse Astrocytoma, Low Grade Less Common Meningioma Schwannoma Ependymoma Metastases, Intracranial,…
Prepontine Cistern Mass Gregory L. Katzman, MD, MBA DIFFERENTIAL DIAGNOSIS Common CSF Flow Artifact Dolichoectasia (Vertebrobasilar) Fusiform Aneurysm, ASVD Meningioma Metastases, Skull and Meningeal Less Common Epidermoid Cyst Chiari 2…
Ring-Enhancing Lesion, Solitary Yoshimi Anzai, MD, MPH Judy Tan, MD DIFFERENTIAL DIAGNOSIS Common Metastases, Parenchymal Glioblastoma Multiforme Abscess Intracerebral Hematoma (Subacute) Cerebral Infarction, Subacute Radiation Necrosis Less Common Tumefactive Demyelinating…
CSF-like Extra-Axial Mass Yoshimi Anzai, MD, MPH Judy Tan, MD DIFFERENTIAL DIAGNOSIS Common Arachnoid Cyst Neurocysticercosis Less Common Pineal Cyst Schwannoma (Cystic) Epidermoid Cyst Rare but Important Neurenteric Cyst Leptomeningeal…
Fat in Sulci/Cisterns/Ventricles Yoshimi Anzai, MD, MPH Judy Tan, MD DIFFERENTIAL DIAGNOSIS Common Lipoma Subacute Hemorrhage (Mimic) Less Common Dermoid Cyst (Ruptured) Teratoma Rare but Important Lipoidal Contrast (Mimic) Metaplastic…
Effaced Sulci, Generalized Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Generalized Cerebral Edema Cerebral Edema, Traumatic Hypoxic-Ischemic Encephalopathy Hypotensive Cerebral Infarction Toxic/Metabolic Encephalopathies (Many) Subdural Hematoma, Subacute Acute Obstructive…
Cyst with Nodule Troy Hutchins, MD Karen L. Salzman, MD DIFFERENTIAL DIAGNOSIS Common Neurocysticercosis Pilocytic Astrocytoma Ganglioglioma Hemangioblastoma Less Common Metastases, Parenchymal Glioblastoma Multiforme Pleomorphic Xanthoastrocytoma Abscess Opportunistic Infection, AIDS,…
T1 Hypointense, T2 Hyperintense Parenchymal Lesions Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Enlarged Perivascular Spaces Arteriolosclerosis Chronic Hypertensive Encephalopathy Cerebral Amyloid Angiopathy Lacunar Infarction Demyelinating Disease Multiple Sclerosis…
Restricted Diffusion Bronwyn E. Hamilton, MD DIFFERENTIAL DIAGNOSIS Common Cerebral Ischemia-Infarction, Acute Abscess Empyema Epidermoid Cyst Less Common Intracerebral Hematoma Diffuse Axonal Injury (DAI) Encephalitis (Miscellaneous) Meningioma Primary CNS Lymphoma…
