Differential Diagnosis Flashcards
DDx for adult infratentorial mass
MHAMS
Mets, hemangioblastoma, astrocytoma, medulloblastoma, subependymoma
DDx for adult supratentorial mass
MANOL
Mets, astrocytoma, central neurocytoma, oligodendroglioma, lymphoma
DDx for pediatric supratentorial neoplasms
GPEC
Glioma, PNET, ependymoma, choroid plexux tumors
DDx for pediatric infratentorial neoplasms
AMG ERC
Astrocytoma (pilocytic), medulloblastoma, ependymoma (floor of 4th vent), atypical rhabdoid teratoid tumor, choroid plexus papilloma
DDx for superficial gliomas
DNET, ganglioglioma, pleomorphic xanthoastrocytoma
DDx for adult suprasellar mass
Adenoma, meningioma, aneurysm
DDx for pediatric suprasellar mass
Craniopharyngioma, Rathke’s cleft cyst, glioma, hypothalamic harmatoma, germinoma, LCH
DDx for infundibular mass
MD GELS
Mets, dermoid, germinoma, EG, lymphoma, sarcoma
DDx for infundibular cyst
Rathke cleft cyst
DDx for pineal region mass
GTP
Germinoma, teratoma, pineal parenchymal tumors, pineoblastoma, pineocytoma, vein of Galen aneurysm
DDx for CP angle tumors
SAME
Schwannoma, arachnoid cyst, meningioma, epidermoid
DDx for septum pellucidum region tumors
Central neurocytoma, supependymoma,
DDx for lateral ventricle mass, anterior
Subependymoma, central neurocytoma, subependymal giant cell tumor, ependymoma, astrocytoma
DDx for lateral ventricle mass, posterior
Choroid plexus tumors, meningioma, mets
DDx for third ventricle cyst
Colloid cyst
DDx for fourth ventricle mass
Ependymoma, subependymoma, choroid plexus tumors
DDx for cystic mass with nodule
PGP H
Pilocytic astrocytoma, ganglioglioma, pleomorphic astrocytoma, hemangioblastoma
DDx for ependymal enhancement
CMV, lymphoma
DDx for pediatric parenchymal calcifications
CMV (periventricular), toxoplasmosis (diffuse)
DDx for leptomeningeal enhancement
Bacterial, carcinomatosis, lymphoma
DDx for thick parenchymal enhancement
SICI
Sarcoid, intracranial hypotension, carcinomatosis, infection
DDx for basilar meningitis
TB, fungal
DDx for bilateral basal ganglia abnormality
NH4
NF1, hepatic encephalopathy, hyperalimentation, hyper/hypo/pseudohypothyroidism), hypoxia/anoxia
DDx for hypoxia
Acute, CO, toxins, enzyme deficiencies
DDx for caudate atrophy
Huntington’s
DDx for basal ganglia calfications
HIV, calcium-phosphate metabolism