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Washington University Experience | NEOPLASMS (GLIAL) | Glioblastoma - Gross Pathology | 30A6 Glioblastoma (Case 30) 5

Cross sections through the brainstem show a large mass of similar neoplasm occupying the most distal aspects of the cerebral aqueduct and rostral 4th ventricle. In addition, there is a single deposit involving the roof of the 4th ventricle growing into the vermis of the cerebellum. The latter lesion is has a circumscribed appearance and appears to be in extension or a seedling and not the primary source of the neoplasm. ---- Comment: The diagnosis was glioblastoma involving the walls of the III ventricle, pineal, and right basal ganglia with ventricular spread involving the pons, IV ventricle, and cerebellum.

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