title: Photo quiz. Chronic ulcerated lesion on the face.
authors.affiliation: Georgetown University Medical Center, Division of Dermatology, Washington, DC 20007, USA.
authors.forename: A
authors.initials: A
authors.lastname: Khachemoune
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000601:surgery; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005153:Facial Neoplasms / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D012883:Skin Ulcer / Q000209:etiology*