title: Basal cell carcinoma arising from epidermoid cyst: a case report.
abstract: Cutaneous epidermoid cysts are very common lesions, but neoplastic transformation of their epithelium is extremely rare. We describe a patient with basal cell carcinoma arising in the wall of an epidermoid cyst present on the back for 20 years. We emphasize the advisability of a close histologic examination of all cutaneous cysts that are seemingly benign in order to avoid incorrect diagnosis.
authors.affiliation: Plastic Surgery Department, Florence University, CTO Largo Palargi, I-50139 Florence, Italy. dinimario@tin.it
authors.forename: M
authors.initials: M
authors.lastname: Dini
authors.forename: A
authors.initials: A
authors.lastname: Innocenti
authors.forename: G F
authors.initials: GF
authors.lastname: Romano
mesh_terms: D002280:Basal Cell Carcinoma / Q000473:pathology* / Q000601:surgery; D002471:Cell Transformation, Neoplastic; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012871:Skin Diseases / Q000473:pathology* / Q000601:surgery; D012878:Skin Neoplasms / Q000473:pathology / Q000601:surgery