title: Fine structure of an unusual spongy variant of medulloblastoma.
abstract: The prominent finding on electron microscopy of an unusual spongy variant of medulloblastoma was the marked distention of a well-developed smooth endoplasmic reticulum of the tumor cells. To the authors' knowledge, this fine structural feature has not been described previously in this tumor.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000648:ultrastructure*; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D006801:Humans; D008297:Male; D008527:Medulloblastoma / Q000648:ultrastructure*; D008854:Microscopy, Electron