title: [Trichoblastic fibroma].
abstract: A trichoblastic fibroma in the oval fossa of the left thigh of a 70 year old female is described. Basaloid cell complexes were surrounded by a moderately cellular, partly fibromyxoid stroma. Epithelial buds resembled the primitive hair germ which derives from the embryonal periderm. Epithelial layers, 1-2 cells thick, were enclosed in a hyalinized and condensed stroma. The development of a real hair bulb or a real hair matrix was not found.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D005350:Fibroma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D006801:Humans; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery
vernacular_title: Trichoblastisches Fibrom.