Enhancing Cranial Nerve(s) Anne G. Osborn, MD, FACR DIFFERENTIAL DIAGNOSIS Common Metastases Neurofibromatosis Type 2 Neurofibromatosis Type 1 Plexiform Neurofibroma Optic Nerve Glioma Multiple Sclerosis Optic Neuritis Less Common Viral,…
T2 Hypointense Extra-Axial Lesions Bronwyn E. Hamilton, MD DIFFERENTIAL DIAGNOSIS Common MR Artifacts, Flow-Related MR Artifacts, Magnetic Susceptibility Pneumocephalus Physiologic Calcification, Dura Meningioma Metastases, Skull and Meningeal Schwannoma Less Common…
Multiple Hypodense Parenchymal Lesions Karen L. Salzman, MD DIFFERENTIAL DIAGNOSIS Common Cerebral Infarction Trauma Cerebral Contusion Diffuse Axonal Injury (DAI) Metastases, Parenchymal Less Common Multiple Sclerosis Infection Encephalitis (Miscellaneous) Abscesses…
CPA Mass, Adult H. Ric Harnsberger, MD DIFFERENTIAL DIAGNOSIS Common Vestibular Schwannoma Less Common Meningioma, CPA-IAC Epidermoid Cyst, CPA-IAC Aneurysm, CPA-IAC Arachnoid Cyst, CPA-IAC Metastases, CPA-IAC Rare but Important Neurofibromatosis…
Cisterna Magna Mass Gregory L. Katzman, MD, MBA DIFFERENTIAL DIAGNOSIS Common Herniation Syndromes, Intracranial Chiari 1 Chiari 2 Dandy-Walker Continuum (DWC) Less Common Arachnoid Cyst Ependymoma Meningioma Metastasis Intracranial Hypotension…
Periventricular Calcification Susan I. Blaser, MD, FRCPC DIFFERENTIAL DIAGNOSIS Common TORCH, General CMV, Congenital Toxoplasmosis, Congenital Herpes Encephalitis, Congenital HIV, Congenital Rubella, Congenital Tuberous Sclerosis Complex Less Common Neurocysticercosis Tuberculosis…
Fat-like Lesion(s), General Sheri L. Harder, MD DIFFERENTIAL DIAGNOSIS Common Choroid Plexus Xanthogranuloma Lipoma Craniopharyngioma Teratoma Dermoid Cyst Ossified Falx Less Common Asymmetric Marrow, Petrous Apex Cholesterol Granuloma, Petrous Apex…
Sulcal/Cisternal Enhancement Sheri L. Harder, MD DIFFERENTIAL DIAGNOSIS Common Meningitis Meningeal Carcinomatosis Lymphomatous Meningitis Neurocysticercosis Tuberculosis Meningitis Less Common Neurosarcoid Sturge-Weber Syndrome Fungal Diseases Aneurysmal Subarachnoid Hemorrhage (Subacute May Enhance)…
Multiple Hypointense Foci on T2 Nancy J. Fischbein, MD DIFFERENTIAL DIAGNOSIS Common Neoplasm Lymphoma Metastases, Parenchymal Multifocal Glioma Atypical Infection Bacterial (TB, Nocardia) Fungal Diseases Toxoplasmosis, Acquired Less Common Neurosarcoid…
Cystic CPA Mass H. Ric Harnsberger, MD DIFFERENTIAL DIAGNOSIS Common Epidermoid Cyst, CPA-IAC Arachnoid Cyst, CPA-IAC Less Common Vestibular Schwannoma with Intramural Cyst(s) Neurocysticercosis, CPA Hemangioblastoma Large Endolymphatic Sac Anomaly…
