Cerebellar Medulloblastoma is related to hydrocephalus and obstructive hydrocephalus. An important gene associated with Cerebellar Medulloblastoma is SHH (Sonic Hedgehog Signaling Molecule), and among its related pathways/superpathways are Neuroscience and Signaling by Hedgehog. Affiliated tissues include cerebellum and brain, and related phenotypes are Decreased viability in pancreas lineage and nervous system