[A Case of Intestinal Obstruction Due to an Internal Hernia in the Mesenteric Defect after Laparoscopic Resection of Transverse Colon].

72-year-old man who was diagnosed with transverse colon cancer cT3N1aM0, Stage Ⅲb, and underwent laparoscopic- assisted resection of the transverse colon. Postoperatively, the patient was discharged from the hospital after 24 days due to complications such as paralytic ileus and intra-abdominal abscess caused by prolonged intestinal congestion. On postoperative day 91, the patient developed abdominal pain and vomiting at home, and was rushed to our hospital on the same day. Abdominal CT showed that an internal hernia had formed in the mesenteric defect after resection of the transverse colon, which was suspected to have caused obstruction of the small intestine. After adequate preoperative decompression of the intestinal tract, a laparoscopic surgery was performed on the 9th day. The operative findings were that the jejunum(100- 160 cm from the Treitz ligament)had strayed into the mesenteric defect of the transverse colon, resulting in an internal hernia. After the internal hernia was repaired laparoscopically, the mesenteric defect was closed with a 3-0 V-Loc(non- absorbable). The patient had a good postoperative course and was discharged home 6 days after surgery.