Malignant transformation of anal skin tags in Crohn's disease.
The anal skin tags of a young man with ileal and perianal Crohn's disease underwent malignant transformation. This was not associated with immunosuppressive drug therapy and has not been previously described.
D000328:Adult; D001003:Anal Canal; D002294:Carcinoma, Squamous Cell / Q000209:etiology*; D003424:Crohn Disease / Q000150:complications*; D006801:Humans; D008297:Male; D012878:Skin Neoplasms / Q000209:etiology*