From the case:
Roux-en-Y gastric bypass procedure
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The Roux limb may be brought to the stomach along different paths, one is Anterocolic-Anterogastric course.
The Roux limb may be brought to the stomach along different paths, another one is retrocolic-retrogastric path, that involves tunneling the Roux limb through a surgically created defect in the transverse mesocolon, behind the excluded stomach.
Diagram by Bruno Di Muzio.
Case Discussion
Illustrations of the two pathways for the Roux limb used in the laparoscopic Roux-en-Y gastric bypass procedure.
Knowledge of the path is critical to an accurate interpretation of subsequent radiographs.
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