title: Granular cell tumour in the third ventricle. Case report with histological, electron-microscopic, immunohistochemical and necropsy findings.
abstract: A rare granular cell tumour was found in the third ventricle of a 56-year-old woman. Histological and electron-microscopic features obtained from the biopsy material were identical to those of previously recorded cases. Immunohistochemical study demonstrated vimentin but not S-100 protein in the tumour cells. The possibility should be re-considered that granular cell tumours may have more than one cell of origin.
mesh_terms: D002551:Cerebral Ventricle Neoplasms / Q000601:surgery / Q000648:ultrastructure*; D002552:Cerebral Ventricles / Q000648:ultrastructure; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D008854:Microscopy, Electron; D008875:Middle Aged; D009418:S100 Proteins / Q000378:metabolism; D012509:Sarcoma / Q000601:surgery / Q000648:ultrastructure*; D014746:Vimentin / Q000378:metabolism
chemical_list: D009418:S100 Proteins; D014746:Vimentin