[CT diagnosis of midgut malrotation]

Huan-yi Guo, Shi-ting Feng, Zi-ping Li, Xiao-yan Wang, Can-hui Sun
Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery 2009, 12 (6): 588-90

OBJECTIVE: To explore the diagnostic value of CT in midgut malrotation.

METHODS: The CT appearances of 16 patients with midgut malrotation were analyzed retrospectively.

RESULTS: The features of CT manifestation in 16 cases were as follows: (1) Horizontal part of duodenum could not reach medioventral line or could reach it but encircled right-down behind the superior mesenteric artery(SMA). (2) Ectopic ileocecal junction. (3) Jejunum located in right-middle abdomen while ileum in left abdomen. (4) A clockwise or counterclockwise rotation of the superior mesenteric vein (SMV) around the SMA. (5) Mid-gut volvulus.(6)Accompanied by other malformations.

CONCLUSION: Ambulation of duodenum, location of the small intestine and colon as well as anatomical position of mesenteric vessels should be intensively observed in order to exclude midgut malrotation.

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