Neuroradiology Flashcards
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Saccular Aneurysm - mass projects medially from internal carotid artery
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Arteriovenous Malformation - L MCA Hypertrophied and gives multiple feeding vessels to the nidus
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Subarachnoid Hemorrhage - High density recent bleed with distribution/shape that rules out other types of hemorrhage
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Subdural hematoma - extra-axial collections of different signal intensities showing at least 3 different ages of subdural
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Infection - loss of distinction between endplates, disks, adjacent vertebral bodies on T1 and increased T2 signal
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Frontotemporal dementia - Note tau accumulation in frontal and temporal lobes
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Cavernous Hemangioma - speckled/popcorn appearance of mass lesion and heterogenous T2 and T1 signal
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Anoxia - necrotic globus pallidus enhances after gadolinium administration
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Hypothalamic hamartoma - midline mass of hypothalamus has typical appearance of hamartoma of tuber cinereum
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Acute Infarction - multiple regions of infarction in multifocal vascular distribution
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Chiari Malformation - cerebellar tonsils descend below foramen magnum
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Meningioma - Lesion is isodense on T1, enhances with gadolinium, compresses tip and medial aspect of temporal lobe
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Glioblastoma multiforme - SIngle, large, infiltrative multicystic enhancing mass surrounded by vasogenic edema
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Epidermoid Cyst - ovoid extra-axial mass has a cystic apperance, signal characteristics similar to CSF, reticulated linear foci within lesion
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Creutzfeldt-Jakob disease - note decreased diffusion in caudate and lenticular nuclei
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