Which part of the gastrointestinal tract is most commonly affected in Crohn’s disease?

Which of the following gross features is most consistent with ulcerative colitis rather than Crohn’s disease?

Which of the following complications is more likely in Crohn’s disease than in ulcerative colitis?

Which of the following is the most common site of involvement in ulcerative colitis?

Which of the following is a characteristic feature of Crohn’s disease?

A biopsy from a patient with chronic bloody diarrhea shows mucosal and submucosal inflammation with crypt abscesses. Which diagnosis is most likely?

Which of the following histologic findings is most commonly observed in a bowel biopsy from a patient with Crohn’s disease?

A 30-year-old man presents with a 4-month history of continuous bloody diarrhea, lower abdominal cramping, and urgency.

He reports no perianal pain or fistulas.

On colonoscopy, the inflammation is continuous, starting from the rectum and extending proximally to the sigmoid colon.

Biopsy reveals mucosal and submucosal inflammation with crypt abscesses, but no granulomas.

Which diagnosis is most consistent with this presentation?