title: Granular cell tumours of the vulva.
abstract: Granular cell tumours occur in a variety of sites, including the vulva. Origins from myogenic, histiocytic, fibroblastic and neurogenic elements have been proposed. Female preponderance suggests that oestrogenic hormones are involved. Seven cases of granular cell tumours of the vulva have been studied. In none was the correct diagnosis made preoperatively. They were solitary lesions and local excision was curative. Paraffin sections of these cases were studied by peroxidase-antiperoxidase method for myoglobin, lysozyme, alpha-1-antitrypsin and S-100 protein localization. Antimyoglobin, antilysozyme and anti-alpha-1-antitrypsin antibodies were not localized in these tumours; however, S-100 protein was localized in all of them. These results agree with previous data that suggest a neurogenic origin for granular cell tumours.
authors.affiliation: Department of Pathology, Port-of-Spain General Hospital Trinidad, West Indies.
authors.forename: G C
authors.initials: GC
authors.lastname: Raju
authors.forename: V
authors.initials: V
authors.lastname: Naraynsingh
mesh_terms: D000328:Adult; D003560:Cysts / Q000453:epidemiology* / Q000473:pathology; D005260:Female; D005350:Fibroma / Q000453:epidemiology* / Q000473:pathology; D006801:Humans; D008067:Lipoma / Q000453:epidemiology* / Q000473:pathology; D008875:Middle Aged; D009379:Neoplasms, Muscle Tissue / Q000453:epidemiology* / Q000473:pathology; D014300:Trinidad and Tobago; D014846:Vulvar Neoplasms / Q000453:epidemiology* / Q000473:pathology