Multidetector CT Findings of Retroarterial Reversed Intestinal Rotation in an Adult: A Case Report

mon intestinal developmental anomalies, and accounts for 4% of all malrotation cases (1). In 1923, Dott et al. (2) proposed that in reversed rotation, the normal 270 counterclockwise rotation is replaced by a 90 counterclockwise rotation followed by a 180 clockwise rotation, resulting in a net 90 clockwise rotation. Intestinal malrotation is usually diagnosed during infancy and childhood as a result of acute symptoms induced by complications including intestinal obstruction or volvulus. Adults with rotational anomalies are asymptomatic and are usually founded incidentally during an imaging evaluation or laparotomy for coincidental disease (3). Only a few cases of reversed intestinal rotation have been reported in surgical and internal medicine literatures. To the best of our knowledge, there are no reports of MDCT findings concerning reversed intestinal rotation (4-6). We report a case of reversed rotation in a 38year-old man, focusing on the first MDCT findings alongside a literature review.