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9 Cards in this Set

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epidural bleed
epidural bleed
CSF leak
epidural bleed
neuro base fracture
subdural hematoma
subdural bleed
temporal bone fx
Increase signal on T1 MRI Brain
Table 1
Classification of T1-Hyperintense Intracranial Lesions according to Lesion Content
Methemoglobin
Hemorrhagic infarct, intraparenchymal hematoma (eg, in amyloid angiopathy), diffuse axonal
injury, subarachnoid hemorrhage, epidural hematoma, subdural hematoma, intraventricular
hemorrhage, arterial and venous thrombi, vascular malformations (eg, cavernous malformation),
hemorrhagic neoplasm
Melanin Metastatic melanoma, primary diffuse meningeal melanomatosis, melanocytoma, neurocutaneous
melanosis
Lipid
Lipoma, osteolipoma, teratoma, dermoid cyst, lipomatous neoplasm (meningioma, astrocytoma,
medulloblastoma, neurocytoma, ependymoma), hypothalamic hamartoma, metaplastic ossification of the dura
Protein
Colloid cyst, Rathke cleft cyst, ectopic posterior pituitary gland, intracranial extension of mucocele, duplicated pituitary gland
Minerals Cockayne syndrome, Fahr disease (hypoparathyroidism, pseudohypoparathyroidism, pseudopseudohypoparathyroidism; tumor calcification), neurodegeneration with brain iron accumulation,
Fabry disease, hepatic encephalopathy, Wilson disease, hyperalimentation, hypermagnesemia
Other HIV infection, type 1 neurofibromatosis, cholesterol granuloma, craniopharyngioma, cortical laminar necrosis, hypoxic ischemic encephalopathy, chronic multiple sclerosis, chordoma, nonketotic
hyperglycemia, abscess