title: Keratoacanthoma in a tattoo.
abstract: Several malignant lesions have been reported in association with tattoos, including basal cell carcinomas, squamous cell carcinomas and melanoma. We report a keratoacanthoma arising in a recent tattoo. A 60-year-old woman presented with a tumor on her right leg, over an area of red pigment in a professional tattoo. Histological analysis confirmed the clinical diagnosis of keratoacanthoma. Although the association between malignancy and tattoos is very uncommon dermatologists and dermatologic surgeons should be attentive to this possibility.
authors.affiliation: Department of Dermatology, State University of Londrina, Parana, Brazil. airton@sercomtel.com.br
authors.forename: Airton dos Santos
authors.initials: Ados S
authors.lastname: Gon
authors.forename: Lorivaldo
authors.initials: L
authors.lastname: Minelli
authors.forename: Marcela Cristina  Garbosa
authors.initials: MC
authors.lastname: Meissner
mesh_terms: D005260:Female; D006801:Humans; D007636:Keratoacanthoma / Q000209:etiology* / Q000601:surgery; D007866:Leg; D008875:Middle Aged; D012871:Skin Diseases / Q000209:etiology* / Q000601:surgery; D013653:Tattooing / Q000009:adverse effects*