the Gastrolab Endoscopy Quiz of the Month - Old Quizes and Answers: January 2001
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The Old Endoscopy Quiz (and Answer) of the Month
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These are pictures from the rectum of a man who for nearly 10 years had suffered from a slight diarrea. There might have been some blood in the stools from time to time. His general condition was excellent and he did not have any stomach pain, a slight anemia however was observed. What is this disease?
Ulcerative colitis. The histologic pictured showed a typical ulcerative colitis, and the patient promptly responded to treatment with 5-ASA.
Correct answers were emailed by
Lisa Haggerty, Toronto, Canada
Melanosis coli was the most frequent answer. This could have been melanosis, although the pigmentation is perhaps a little more brown in that disease. Just to compare, below is a picture of a typical rectal melanosis: