卵巣成熟奇形腫の手術後に腹腔内播種を認めた一例

抄録

  A 36-year-old female with patient who has a history of surgical resection for mature teratoma by laparoscopic cystectomy about ten years ago, felt discomfort in her lower abdomen and presented visited to our hospital for further examination. From CT and MRI examination results, we found two kinds of tumors following; a) cystic tumors with wall calcification and fat content in the left ovary, b) small calcified tumors in the vesicouterine pouch and on the transverse colon. The tumor of the left ovary was extracted by laparoscopic cystectomy. During operation, we found that the calcified tumors in the vesicouterine pouch were teeth and suspected that the tumors resulted from peritoneal dissemination of the mature teratoma resected about ten years ago. We completely removed the tumors in the vesicouterine pouch but were unable to remove the tumor on the transverse colon because the omentum was well-grown. The tumor in the vesicouterine pouch was histologically diagnosed as a mature teratoma. In cases where the primary lesion is not malignant, the possibility remains of tumor dissemination in the abdominal cavity following tumor rupture during surgical resection. Therefore we must prevent such leakage of the teratoma contents in the abdominal cavity.