Recurrent colonic intussusception due to a lipoma of the transverse colon at the background of congenital dolichocolon and chronic constipation.

Colonic intussusception caused by benign tumour in adults is uncommon condition. Lipoma as benign tumour arises from submucosal layer of gastrointestinal tract and derives from mature adypocytes. It is usually small asymptomatic lesion and reveals during colonoscopy, CT, surgery or autopsy accidentally.

Transverse colon duplication with chronic constipation in adult.

Gastrointestinal duplications are extremely rare congenital abnormalities having definite difficulties to be diagnosed preoperatively. Most of them are presented at the oesophagus and ileum and only involve colon from 4% to 18%. We illustrate a case report of an 18-year-old female patient with transverse colon duplication.