Bowen's disease.
D020261:Arsenic Poisoning; D001913:Bowen's Disease / Q000209:etiology / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology; D012878:Skin Neoplasms / Q000209:etiology / Q000473:pathology*