Hide and Seek—CT colonoscopy solves the riddle(2)

Rolf Janka, MD

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Abstract: 

A 79-year-old man was referred for CT colonoscopy (CTC) following optical colonoscopy. Unusually, the request was not due to an incomplete optical colonoscopy. The patient was referred because the gastroenterologist had identified a large polyp for resection but was unable to identify its exact location and secure it for resection during the optical procedure.

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Question Text 

What abnormality accounts for the gastroenterologist's difficulty
in identifying the polyp's location?
 

Answers
 Answer: Obstructing distal lesion. 
Correct Answer? 
No
Answers
 Answer: Distal stricture. 
Correct Answer? 
No
Answers
 Answer: Intestinal malrotation. 
Correct Answer? 
Yes
Answers
 Answer: Absence of a true polyp. 
Correct Answer? 
No
Answers
 Answer: Colonic redundancy. 
Correct Answer? 
No
 
Case Study Link: Hide and Seek—CT colonoscopy solves the riddle