title: Keratoacanthoma arising in nevus comedonicus.
abstract: Nevus comedonicus is a benign hamartoma of the pilosebaceous unit and is considered as a rare subtype of epidermal nevus. It was first described in 1895. It manifests as a group of closely dilated follicular openings with dark keratin plugs resembling comedones. Malignant degeneration of a nevus comedonicus is exceptional; we report a case of keratoacanthoma arising in extensive nevus comedonicus.
authors.affiliation: Department of Dermatology, Avicenne University Hospital, Rabat, Morrocco.
authors.forename: Sara
authors.initials: S
authors.lastname: Zarkik
authors.forename: Jamila
authors.initials: J
authors.lastname: Bouhllab
authors.forename: Aicha
authors.initials: A
authors.lastname: Methqal
authors.forename: Yassir
authors.initials: Y
authors.lastname: Afifi
authors.forename: Karima
authors.initials: K
authors.lastname: Senouci
authors.forename: Badreddine
authors.initials: B
authors.lastname: Hassam
mesh_terms: D000328:Adult; D003879:Dermatologic Agents / Q000627:therapeutic use; D006801:Humans; D007636:Keratoacanthoma / Q000188:drug therapy / Q000473:pathology*; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use; D009506:Nevus / Q000188:drug therapy / Q000473:pathology*; D012878:Skin Neoplasms / Q000188:drug therapy / Q000473:pathology*; D016896:Treatment Outcome
chemical_list: D003879:Dermatologic Agents; D008727:Methotrexate