2021 Volume 54 Issue 5 Pages 344-350
A 70-year-old man went to his family doctor because of right hypochondrial pain. He was diagnosed with cholecystitis by abdominal US. One week later he was referred to our hospital. Abdominal CT showed a 4-cm tumor at the root of the small mesentery, and close to the superior mesenteric artery and inferior mesenteric vein. Teratoma or liposarcoma was suspected because the tumor was mainly fat and partly soft tissue. Tumor resection was planned at the same time as cholecystectomy. Since the mesenteric tumor might have been malignant, it was resected together with surrounding tissue. Hair was found inside the resected spacemen. A pathological examination revealed a mature cystic teratoma. The postoperative course was uneventful and the patient was discharged 8 days after the operation. We report this case as a relatively rare example of a mature cystic teratoma of the mesentery.
