Abstract
A 46-year-old male patient visited a doctor in his neighborhood with chief complaints of abdominal pain and tar-like stools. Since upper and lower endoscopy did not reveal any significant abnormalities, he was referred to our institution. A CT scan showed a fat-density tumor, which was suspected to have induced ileal intussusception. Double-contrast radiography of the small intestine also revealed translucency indicating a mass lesion in the ileum. Since differentiation between benign and malignant lesions was difficult in this case with symptoms, laparoscopically-assisted resection was performed. Wall thickening of 20 cm length in the ileum, 20 cm in length, at the ileocecal junction, and ileal intussusception were confirmed. The right side of the umbilicus was elevated and a 5-cm incision was made. The ileum was brought out extracorporeally and resected. By using the specimen of resected tissue, the patient was disgnosed as having had non-neoplastic lesions associated with diverticular disease as a lead point for ileal intussusception. Histopathologically, it was diagnosed as intussuception due to an inverted Meckels diverticulum with lipohyperplasia in the leading head.
