[Bowen's disease--a warning of internal malignancy?].
D000328:Adult; D000368:Aged; D001913:Bowen's Disease / Q000175:diagnosis*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000556:secondary