title: An adult case of histiocytosis X with a vulvar ulcer and multiple bone lesions.
abstract: A 62-year-old female with histiocytosis X presented with a vulvar ulcer. Multiple osteolytic lesions were later detected. Histological examination of the ulcerated skin showed diffuse proliferation of histiocytic cells with folded nuclei and pale eosinophilic cytoplasm. Immunohistochemistry revealed S100 protein and vimentin as well as CD1a, CD4, and HLA-DR antigens in the proliferating cells. Electron microscopy demonstrated Birbeck granules in the cytoplasm of the cells. The patient was successfully treated by complete surgical excision of the ulcer followed by radiotherapy for recurrent vulvar erythema.
authors.affiliation: Department of Dermatology, Kanazawa University School of Medicine, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Takata
authors.forename: A
authors.initials: A
authors.lastname: Taniguchi
authors.forename: T
authors.initials: T
authors.lastname: Imai
authors.forename: T
authors.initials: T
authors.lastname: Hirone
authors.forename: A
authors.initials: A
authors.lastname: Nonomura
authors.forename: Y
authors.initials: Y
authors.lastname: Fukui
mesh_terms: D005260:Female; D006646:Histiocytosis, Langerhans-Cell / Q000150:complications / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D010014:Osteolysis; D014456:Ulcer / Q000150:complications / Q000473:pathology; D014845:Vulvar Diseases / Q000150:complications / Q000473:pathology*