卵巣嚢腫茎捻転との鑑別が困難であった腸間膜嚢胞の一例

抄録

  A 14-year-old female adolescent presented with sudden pain in the suprapubic region. She denied a history of pregnancy, childbirth, and sexual intercourse or any relevant medical history. She underwent medical examination at this hospital, and ultrasonography and computed tomography (CT) revealed a multilocular cystic tumor (13 cm) in the pelvis. She was diagnosed with left ovarian cystic tumor torsion, and underwent laparoscopic surgery. The cyst was punctured to ensure clear visualization of the operative field. We observed normal bilateral adnexal structures and identified a tumor that originated from the ileal mesentery. The cystic fluid was bloodstained, and her pain was attributed to intracystic hemorrhage within the mesentery. We performed only cystic drainage, and the patient's postoperative course was uneventful.

  Retrospective evaluation of the CT images revealed the superior mesenteric artery coursing through the cyst, and we diagnosed her with a possible mesenteric cyst.

  Unfortunately, we assumed that the cyst originated from the ovary, and puncture was performed before the site of the cyst could be confirmed.

  We emphasize that preoperative evaluation of imaging findings is essential in patients with a pelvic neoplasm, and clinicians should not conclude that the lesion is an ovarian tumor without considering a mesenteric cyst in the differential diagnosis.