title: Intracranial extraskeletal myxoid chondrosarcoma with special reference to lamellar inclusions in the rough endoplasmic reticulum.
abstract: An extraskeletal myxoid chondrosarcoma in the pineal region was studied by light and electron microscopy. The immunohistochemical positivity for S-100 protein, vimentin and collagen type II favored a chondrocytic origin of the tumor. In addition to the well-described ultrastructural features suggestive of a cartilagenous nature, this tumor had unusual lamellar inclusions in the rough endoplasmic reticulum. To the best of our knowledge, this is the first report of these special inclusion bodies in a myxoid chondrosarcoma.
authors.affiliation: Department of Neurosurgery, Fukui Medical School, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Kubota
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: H
authors.initials: H
authors.lastname: Murata
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure; D002813:Chondrosarcoma / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D002479:Inclusion Bodies / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure