Laparoscopically Assisted Resection of Preoperatively Diagnosed Adult Omental Lymphangioma—A Case Report—

Abstract

A rare case of omental lymphangioma presenting in an adult patient is reported. A 30-year-old woman presented to our hospital with a chief complaint of abdominal pain and nausea persisting for several months. Upper and lower gastrointestinal endoscopies showed no abnormalities. Computed tomography showed an intrapelvic cyst with a long diameter of 80 mm, which was internally homogeneous with no solid component and no contrast enhancement. The cyst was in contact with the right gastroepiploic artery and vein and their branches, and its cranial end was touching the gastric wall. It was considered to be derived from the greater omentum, and omental lymphangioma was suspected. Since the patient was symptomatic, laparoscopically assisted cystectomy with partial gastrectomy was performed. Postoperatively, the symptoms resolved. Omental lymphangioma was diagnosed based on immunohistochemical staining and other pathological investigations. Intraperitoneal lymphangioma can cause major complications such as pedicle torsion and infection, and surgical resection is recommended. Since adhesions between omental lymphangioma and surrounding organs are uncommon, it is a good indication for laparoscopic surgery.