2022 Volume 38 Issue 1 Pages 69-75
Gliomatosis peritonei, a rare complication of ovarian teratomas, is characterized by mature glial tissue within the peritoneum. Gliomatosis peritonei has favorable prognosis, but pathological diagnosis is necessary. We report a case of gliomatosis peritonei detected using diagnostic laparoscopy for an intrapelvic tumor after surgery for an ovarian immature teratoma (grade 1). A 29-year-old (3 para) woman was referred to our hospital. She underwent surgery for a left ovarian tumor when she was 25 years of age within 15 weeks of her second pregnancy, and the pathological diagnosis was an ovarian immature teratoma (grade 1). She was not administered additional treatment because of her pregnancy and underwent routine follow-up. The pelvic mass was assessed on ultrasonography and magnetic resonance imaging during the follow-up period; she underwent a detailed examination and was referred to our hospital. We performed laparoscopic surgery and resected the pelvic mass in the peritoneum. The pelvic tumor mostly consisted of mature glial tissue and no immature cells on pathological examination, and we established a diagnosis of gliomatosis peritonei. After the surgery, her condition was favorable, and she continued to undergo routine follow-up. Laparoscopic surgery is useful for the pathological examination of pelvic masses after teratoma treatment and diagnosis of gliomatosis peritonei.
