Medulloblastoma

Medulloblastoma is a highly malignant primary brain tumor that originates in the cerebellum or posterior fossa. Originally considered to be a glioma, medulloblastoma is now known to be of the family of cranial primitive neuroectodermal tumors (PNET). Tumors that originate in the cerebellum are referred to as infratentorial because they occur below the tentorium, a thick membrane that separates the cerebral hemispheres of the brain from the cerebe... more

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