skip to main content

Anastomotic leak — USMLE Step 3 MCQ

Instant feedback + full explanation. One question, done properly.

HardSurgery (post-operative, follow-up)Anastomotic leakUSMLE Step 3

A 64-year-old man is 5 days after low anterior resection. He develops fever, tachycardia, worsening abdominal pain, and ileus. CT abdomen shows pelvic fluid with gas bubbles near the anastomosis. Which of the following is the most likely diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: D — Anastomotic leak

Fever, tachycardia, ileus, leukocytosis, and gas-containing fluid near an anastomosis suggest leak.

Reference: ACS colorectal postoperative complications principles