Elsevier

Clinical Imaging

Volume 40, Issue 5, September–October 2016, Pages 840-842
Clinical Imaging

Case Report
Inverted Meckel diverticulum as a lead point of small bowel intussusception: misinterpreting case as a lipoma

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Abstract

Inverted Meckel diverticulum is an uncommon cause of intussusception in adults. It may be confused for an intraluminal lipoma. We present a case of small bowel intussusception due to inverted Meckel diverticulum with characteristic computed tomography finding potentially distinguishable from lipoma.

Introduction

Small bowel intussusception is usually transient without a lead point [1]. When it occurs, a lead point is usually a benign mass, such as lipoma, inverted Meckel diverticulum, or adenomatous polyp [2]. Occasionally, Meckel diverticulum can invaginate into the lumen of the bowel and may cause intussusception. Although the incidence of Meckel diverticulum is high, inversion is quite rare and only a few cases have been reported.

We report our experience in a case of intussusception due to inverted Meckel diverticulum that mimicked lipoma.

Section snippets

Case report

An 18-year-old female patient presented with hematochezia. She had experienced three episodes of hematochezia over 2 days. She was not using any medication and her past medical history was noncontributory. The patient appeared pale and had no abdominal tenderness, and normal active bowel sounds were auscultated. Rectal examination revealed hematochezia. Clear gastric content was obtained on nasogastric aspiration. Serum hemoglobin level and hematocrit was 4.1 g/dl and 13%, respectively. The other

Discussion

Meckel diverticulum is one of the most common congenital anomalies of the gastrointestinal tract. It is seen in 2% of the population and is caused by failure of the omphalomesenteric duct to regress [3]. Meckel diverticulum is typically asymptomatic and usually found incidentally, with a lifetime risk of complications reported to be 4%. Complications of Meckel diverticulum include bleeding, obstruction, enterolith formation, inflammation, and neoplasm [3]. Among these complications, the rate of

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