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A Case of Adult Intussusception due to Ascending Colon Lymphangioma

A 43-year-old man visited our hospital complaining of repeated abdominal pain. Abdominal tenderness and peritoneal irritation were not observed, and an elastic soft mass was palpated in the upper abdomen. Abdominal CT showed intussusception invading the transverse colon. Gastrografin enema gradually reduced the intussusception, and showed an elevated lesion in the ascending colon and cecum. Colonoscopy revealed a swollen lesion with mucosal necrosis and erosion on the anal side of Bauhin ʼ s valve, and a submucosal tumor was suspected. The possibility of malignancy could not be ruled out, and it was decided that surgery should be performed on an elective basis, and so laparoscopic right hemicolectomy (D3 dis-section) was performed. The postoperative course was uneventful, and the patient was discharged on the 6th postoperative day. In the resected specimen, Bauhin ʼ s valve was markedly thickened, the size was 140 × 65 mm, and it was diagnosed as ascending colon lymphangioma by immunostaining with a histopathological examination. Adult intussusception accounts for 1 to 5% of total intussusception; colonic intussusception due to lymphangioma is very rare. Here we report a case of adult intussusception due to ascending colon lymphangioma.