Hyperattenuating (“Dense”) Artery Sheri L. Harder, MD DIFFERENTIAL DIAGNOSIS Common Physiologic Hyperdensity Cerebral Ischemia-Infarction, Acute Less Common Atherosclerosis, Intracranial Polycythemia Fusiform Aneurysm (ASVD, Non-ASVD) Dissection Pseudoaneurysm Rare but Important Devices…
Vascular Calcification(s) Gregory L. Katzman, MD, MBA DIFFERENTIAL DIAGNOSIS Common Physiologic Calcification, Vascular Atherosclerosis, Intracranial Diabetes Saccular Aneurysm Fusiform Aneurysm, ASVD Less Common Chronic Renal Failure Cavernous Malformation Arteriovenous Malformation…
T1 Hypointense Suprasellar Lesion Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Dilated Third Ventricle Arachnoid Cyst (AC) Neurocysticercosis (NCC) Less Common Pilocytic Astrocytoma (PA) Craniopharyngioma Epidermoid Cyst Rathke Cleft…
Fusiform Arterial Enlargement Sheri L. Harder, MD DIFFERENTIAL DIAGNOSIS Common Dolichoectasia Atherosclerotic Fusiform Aneurysm Nonaneurysmal Dissection Less Common Dissecting Aneurysm/Pseudoaneurysm Vasculitis Nonatherosclerotic Fusiform Aneurysm/Vasculopathy Neurofibromatosis Type 1 Systemic Lupus Erythematosus…
Suprasellar Cystic Mass Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Enlarged Third Ventricle Obstructive Hydrocephalus Aqueductal Stenosis Arachnoid Cyst Craniopharyngioma Neurocysticercosis (NCC) Less Common Rathke Cleft Cyst Dermoid Cyst…
T1 Hyperintense Suprasellar Mass Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Pituitary Macroadenoma Craniopharyngioma Less Common Saccular Aneurysm (Thrombosed) Rathke Cleft Cyst Ectopic Neurohypophysis Lipoma Dermoid Cyst Rare but…
T1 Isointense Suprasellar Mass Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Pituitary Macroadenoma Pituitary Hyperplasia Meningioma Pilocytic Astrocytoma Diffuse Astrocytoma, Low Grade Less Common Rathke Cleft Cyst Germinoma Neurosarcoid…
Absent/Thin Infundibular Stalk Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Less Common Pituitary Stalk Transection, Post-Traumatic Pituitary Stalk Transection, Post-Surgical Pituitary Stalk Anomalies Septo-Optic Dysplasia (SOD) Holoprosencephaly Rare but Important…
Hyperdense Suprasellar Mass Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Pituitary Macroadenoma Aneurysm Saccular Aneurysm Fusiform Aneurysm, ASVD Meningioma Less Common Craniopharyngioma Rathke Cleft Cyst Germinoma Neurosarcoid Rare but…
Thick Infundibular Stalk Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Neurosarcoid Germinoma Less Common Meningitis Histiocytosis Lymphocytic Hypophysitis Rare but Important Metastasis (to Stalk/Pituitary) Ectopic Neurohypophysis Pituicytoma Lymphoma, Primary…
