title: Immunohistochemistry of meningiomas including the angioblastic type.
abstract: Immunohistochemical techniques were used to determine the intermediate filament content of normal arachnoidal cells, meningiomas (including the so-called hemangiopericytoma of the meninges), soft tissue hemangiopericytoma, and the normal pericyte. Arachnoid granulations and all types of meningioma stained similarly: positive for vimentin and variably positive for keratin. Soft tissue hemangiopericytomas and normal pericytes were negative for both vimentin and keratin. This suggests that the "hemangiopericytoma" of the meninges is a variant of meningioma and not of pericytic origin.
mesh_terms: D001099:Arachnoid / Q000378:metabolism / Q000473:pathology / Q000648:ultrastructure; D006393:Hemangiopericytoma / Q000378:metabolism / Q000473:pathology*; D006394:Hemangiosarcoma / Q000378:metabolism / Q000473:pathology*; D006651:Histocytochemistry; D006801:Humans; D007633:Keratins / Q000378:metabolism; D008577:Meningeal Neoplasms / Q000378:metabolism / Q000473:pathology*; D014746:Vimentin / Q000378:metabolism
chemical_list: D014746:Vimentin; D007633:Keratins