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BRAIN TUMORS - Coggle Diagram
BRAIN TUMORS
- INTRA-AXIAL (Within Brain Parenchyma)
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Oligodendroglioma
Adults, usually frontal lobe
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Ependymoma
Children, typically 4th ventricle
Perivascular pseudorosettes, causes obstructive hydrocephalus
Medulloblastoma (PNET)
Children, cerebellum / infratentorial
Homer Wright rosettes, can spread via CSF (drop metastases)
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Metastasis
Multiple lesions at gray-white matter junction (common from lung, breast, melanoma)
Meningioma: Extra-axial, dural-based mass with intense contrast enhancement and dural tail
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- EXTRA-AXIAL (Outside Brain Parenchyma)
Meningioma
Adult females, arises from arachnoid meningothelial cells
Dural attachment ("tail"), psammoma bodies, benign compressive mass
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Craniopharyngioma
Rathke's pouch remnant, supratentorial / sellar region
Calcifications, cholesterol crystals ("motor oil" fluid), bitemporal hemianopia in children
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