Squamous cell carcinoma arising in seborrheic keratosis.
D000368:Aged; D002280:Basal Cell Carcinoma / Q000150:complications*; D002294:Carcinoma, Squamous Cell / Q000150:complications*; D006801:Humans; D007642:Keratosis / Q000150:complications*; D008297:Male; D012878:Skin Neoplasms / Q000150:complications*