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Imaging Findings in Roux-en-O and Other Misconstructions: Rare but Serious Complications of Roux-en-Y Gastric Bypass Surgery

¹ Department of Radiology, University of Chicago, 5841 S Maryland Ave., MC 2026, Chicago, IL 60637.
² Department of General Surgery, University of Chicago, Chicago, IL.

OBJECTIVE. The purpose of this study was to present the clinical and imaging findings of Roux-en-O and other misconstructions of Roux-en-Y gastric bypass surgery. The more common complications of Roux-en-Y gastric bypass have been described in the literature. Complications secondary to misconstructions are rare and difficult to diagnose.

CONCLUSION. Roux-en-O or other misconstruction should be suspected in patients with chronic bilious vomiting after Roux-en-Y gastric bypass when no mechanical basis for obstruction can be identified. Fluoroscopic motility assessment is often critical in the diagnosis of these misconstructions.

Keywords: complications • CT • fluoroscopy • gastric bypass surgery • gastrointestinal tract • misconstruction

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