title: Desmoplastic trichilemmoma arising within a nevus sebaceus.
abstract: A 74-year-old man presented with a tumor on his scalp that he had since birth. The authors observed a verrucous pink crusted plaque. The tumor was clinically diagnosed as nevus sebaceus and was removed. Histopathologic study showed, arising from nevus sebaceus, a lobular neoplasm with the classic features of trichilemmoma. Desmoplasia was present in the center of the trichilemmomatous area. This description is typical of a special, uncommon type of trichilemmoma that histologically mimics invasive carcinoma.
authors.affiliation: Department of Dermatology, General Hospital of Galicia, Faculty of Medicine, Santiago de Compostela, Spain.
authors.forename: E
authors.initials: E
authors.lastname: Rosón
authors.forename: P
authors.initials: P
authors.lastname: Gómez Centeno
authors.forename: D
authors.initials: D
authors.lastname: Sánchez-Aguilar
authors.forename: C
authors.initials: C
authors.lastname: Peteiro
authors.forename: J
authors.initials: J
authors.lastname: Toribio
mesh_terms: D000368:Aged; D006222:Hamartoma / Q000150:complications / Q000151:congenital / Q000473:pathology*; D006801:Humans; D008297:Male; D018295:Neoplasms, Basal Cell / Q000209:etiology / Q000473:pathology*; D012535:Scalp / Q000473:pathology; D012536:Scalp Dermatoses / Q000150:complications / Q000151:congenital / Q000473:pathology*; D012878:Skin Neoplasms / Q000209:etiology / Q000473:pathology*