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Washington University Experience | NEOPLASMS (EMBRYONAL) | Medulloblastoma, Histologically Defined | Classic Subtype | 1A6 Medulloblastoma (Case 1) 9
In this area cortical parenchymal involvement is accompanied by intraventricular tumor growth. Notice the impressive ventricular dilatation reflecting obstruction of CSF flow in the ventricular system, exit foramina of the IV ventricle and general involvement of the subarachnoid space.