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44 Cards in this Set
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- Back
- 3rd side (hint)
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Category DDX for intracranial mass lesion
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• Tumor
• Edema • Abscess • Cyst, contusion • Hematoma |
TEACH
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EXTRAAXIAL MASS, cerebral hemisphere
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• Meningioma
• Metastases • Lymphoma • Arachnoid cyst • Dermoid/epidermoid • Other: hemorrhagic, infectious fluid collections |
MMy LAD/E
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Extraaxial Mass of the Clivus/prepontine cistern
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Metastases
Meningioma Chordoma Chondroma Chondrosarcoma |
MMCCC
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CP angle mass
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• Neuroma (VIII, NV, NVII)
• Aneurysm • Meningioma • Epidermoid • Paraganglioma • Other (arachnoid cyst, lipoma, dermoid less common) • Metastases • Petrous apex cholesterol cysts |
NAME POMP
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INTRAAXIAL MASS OF THE CEREBRAL HEMISPHERE
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• Glioblastoma
• Oligodendroglioma • Astrocytoma • Lymphoma • Metastases • PNET • Ganglioma/cytoma |
GOAL MPG
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INTRAAXIAL MASS OF THE SELLA
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• Metastases
• Abscess • Craniopharyngioma/Rathke's cyst • EG stalk • Sarcoid • Adenoma |
MACE SAm
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INTRAAXIAL MASS OF THE BRAINSTEM
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• Astrocytoma
• Glioblastoma |
AG
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INTRAAXIAL MASS OF THE CEREBELLUM
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Hemangioblastoma
Astrocytoma Medulloblastoma Metastases Ependymoma Choroid plexus papilloma or carcinoma |
HAMMEC
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INTRAAXIAL MASS OF THE PINEAL REGION
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• Germ cell tumor
• Pineal parenchymal cell tumor |
GP
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Multiple Intracranial Lesions - Tumor
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• Metastases
• Multicentric glioma • Lymphoma |
MML
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Multiple Intracranial Lesions - Infection
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• Fungus
• Abscess • Cysticercosis • Toxoplasmosis |
FACT
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Multiple Intracranial Lesions - Vascular
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Vasculitis
Diffuse axonal injury Hemorrhage Embolic infarctions Contusions Hemangiomas |
VD HECH
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CORPUS CALLOSUM LESIONS
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Malignancy (GBM, Lymphoma)
Lipoma MS PML Marchiafava-Bignami dz (EtOH) Infarct |
MMM LIP
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INTRASELLAR MASSES
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• Craniopharyngioma
• Aneurysm • Pituitary adenoma • Cysts (Rathke 's cleft, pars intermedia) • Abscess • Pituitary apoplexy • Metastasis |
CAP CAP M
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SUPRASELLAR MASSES
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• Sellar lesion with superior extension, sarcoidosis
• Aneurysm, arachnoid cyst • Teratoid lesions Germ cell tumors Epidermoid/dermoid • Craniopharyngioma • Hypothalamic glioma • Metastases, meningioma • Optic nerve glioma • EG |
SSAATCHMMOE
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SUPRASELLAR MASS - ADULT
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• Macroadenoma (most common)
• Meningioma • Glioma • Craniopharyngioma • Aneurysm (rare, but important) |
MMGCA
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SUPRASELLAR MASS - CHILD
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• Craniopharyngioma (most common)
• Hypothalamic hamartoma • EG • Glioma (optic nerve, chiasm, hypothalamus ) • Germinoma |
CHEGG
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Lateral Tumor of the Cerebellar Hemisphere
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Astrocytoma
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1
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Anterior Tumor of the Posterior Fossa
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Brainstem Glioma
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1
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Midline Posterior Tumor of the Posterior Fossa
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Medulloblastoma
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1
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Posterior Fossa Tumor with a Cystic Component
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• Juvenile Pilocytic astrocytoma
• Hemangioblastoma |
2
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Posterior Fossa Tumor in an Adult
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Schwannoma
Hemangioblastoma Astrocytoma Meningioma Metastases Epidermoid) |
SHAMME
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Posterior Fossa Tumor in a Child
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• Cerebellar astrocytoma
• Brainstem glioma • Medulloblastoma • Ependymoma |
AGME
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BRAIN TUMORS IN INFANTS (< 2 YEARS)
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• PNET (primary cerebral neuroblastoma)
• Anaplastic astrocytoma • Choroid plexus papilloma /carcinoma • Teratoma (most common) |
PACT
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Lateral Ventricle Tumor, 0-15 yo
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PNET
Choroid plexus papilloma2 |
2
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Lateral Ventricle Tumor, 15-30 yo
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Glioma
JPA |
2
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Lateral Ventricle Tumor, >30 yo
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• Central neurocytoma
• Astrocytoma • Metastases • Oligodendroglioma • Subependymoma • Meningioma |
CAMO SaM
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Third Ventricle Tumor, 0-15 yo
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• Extrinsic
craniopharyngioma • Astrocytoma • Germinoma • EG of stalk |
CAGE
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Third Ventricle Tumor, 15-30 yo
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Colloid Cyst
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1
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Third Ventricle Tumor, >30 yo
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Glioma
Mets Pituitary/Pineal Mass Aneurysm Sarcoid |
GMPAS
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4th Ventricle Tumor, 0-15 yo
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• Ependyoma
• Medulloblastoma |
EM
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4th Ventricle Tumor, 15-30 yo
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• Choroid plexus papilloma
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1
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4th Ventricle Tumor, >30 yo
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Hemangioblastoma
Metastases Subependymoma |
HMS
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Cystic Neoplasms
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• Cystic astrocytoma/GBM
• Hemangioblastoma • Metastases: squamous cell carcinoma |
HAM
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TUMORS WITH CSF SEEDING
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Choroid Plexus Papilloma/CA
Ependymoma PNET Germinoma GBM |
CEPGG
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BRAIN LESION - HYPERDENSE ON CT DUE TO HIGH CELL DENSITY
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Lymphoma
PNET Ependymoma Germinoma |
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BRAIN LESION - HYPERDENSE ON CT DUE TO HEMORRHAGIC TUMOR
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GBM
Mets: ChorioCA, Thyroid, Melanoma, RCC, Lung |
G CT/MR L
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BRAIN LESION - HYPERDENSE ON CT DUE TO CALCIFICATION
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Mucinous metastases
All osteogenic tumors |
2
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T2 Hypointense lesions
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Blood degradation products
melanin calcification dense celluarity fibrous tissue high [protein] flow void |
BMCC FFP
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T1 hyperintense lesions
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contrast
MetHb melanin fat very high [protein] slow flow |
CMMFVS
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MULTIPLE RING ENHANCING LESIONS
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mets
abscess glioma/granuloma infarct contusion demyelination resolving infarct |
MAGIC DR
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Diffuse meningeal enhancement
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meningitis
carcinomatosis post-operative SAH Intracranial hypotension |
MCPSI
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basilar meningeal enhancement
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infection (TB, fungal, pyogenic, cysticercosis)
tumor (lymphoma, leukemia, carcinomatosis) inflammatory (sarcoid, RA, whipple's) |
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ependymal enhancement
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tumor (lymphoma, mets, CSF seeding from PNET or GBM)
infection (meningitis or CMV) inflammatory (post-shunt or hemorrhage) |
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