Bariatric surgeries have been increasing with the rising numbers of obese patients. Roux-en-Y is one of the safest and effective bariatric procedures worldwide. Internal hernia is one of laparoscopic Roux-en-Y gastric bypass complications. Its vague symptoms and late presentation may lead to adverse outcomes. Swirl sign in computed tomography scan has proven to be a particular and sensitive finding to detecting internal hernia in patients with an ambiguous presentation.
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