• Ashwini K Esnakula, Archana Sinha, Marie Fidelia-Lambert, and Venkata S Tammana.
• Department of Pathology, Howard University Hospital, Washington, DC, USA. aesnakula@howard.edu
• BMJ Case Rep. 2013 Jan 1; 2013.

AbstractIntussusception in adults is rare and more common in the paediatric population. Clinically, most adult patients have chronic non-specific symptoms due to partial obstruction. In contrast, most paediatric patients present with the classic triad of abdominal pain, vomiting and blood in stool. Adult intussusception is commonly associated with an organic aetiology, most likely a benign or malignant neoplasm as a lead point of intussusception. We describe a case of a 29-year-old woman with subacute presentation due to ileoileal intussusception secondary to a polypoid submucosal angiolipoma. Angiolipoma is a benign lesion composed of mature adipose tissue and thin-walled capillaries. The presence of thin-walled vessels differentiates it from a lipoma. Angiolipomas of the small intestine are extremely rare with very few reported cases. This case not only demonstrates an unusual benign lesion as a cause of intussusception, but also illustrates an atypical clinical presentation in adults with intussusception.

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