Which of the following is more characteristic of ulcerative colitis when compared to Crohn's disease (regional enteritis)?: (A) segmental involvement, (B) granulomas, (C) lymph node involvement, (D) rectal bleeding
Answer is D. Rectal bleeding is more characteristic of ulcerative colitis, as is malignancy with long-standing disease, but both can occur in regional enteritis. Transmural involvement, lymph node involvement, skip lesions, granulomas, and anorectal complications (abscesses, fistulas, fissures) are characteristic of Crohn's disease.