title: A 70-year-old farmer with a skin lesion.
authors: Department of Dermatology, Cleveland Clinic Foundation, OH 44195, USA.
authors: E F
authors: EF
authors: Callahan
authors: K J
authors: KJ
authors: Tomecki
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D012878:Skin Neoplasms / Q000175:diagnosis*