Misawa Akihiko, Kimura Eizo, Oka Aiko, Osanai Kiyono, Suzuki Atsushi
Department of Obstetrics and Gynecology, Kosei Hospital, 2-25-1 Wada, Suginami-ku, Tokyo 166-0012, Japan.
J Surg Case Rep. 2023 Jan 31;2023(1):rjad021. doi: 10.1093/jscr/rjad021. eCollection 2023 Jan.
Teratomas of extragonadal origin are extremely rare. The most common extragonadal site is the greater omentum. A 36-year-old woman was referred to our department for treatment of bilateral ovarian tumors. A 3- to 4-cm mass was observed in each ovary; bilateral ovarian mature cystic teratoma was diagnosed through imaging studies. The patient underwent single-port laparoscopic surgery, during which we found not only bilateral ovarian mature cystic teratomas but also an omental tumor macroscopically similar to the ovarian teratomas. The ovarian and omental teratomas were successfully removed through single-port laparoscopic surgery. The histopathological diagnosis of the omental tumor was parasitic mature cystic teratoma.
性腺外起源的畸胎瘤极为罕见。最常见的性腺外部位是大网膜。一名36岁女性因双侧卵巢肿瘤前来我院治疗。每个卵巢均观察到一个3至4厘米的肿块；通过影像学检查诊断为双侧卵巢成熟囊性畸胎瘤。患者接受了单孔腹腔镜手术，术中我们不仅发现了双侧卵巢成熟囊性畸胎瘤，还发现了一个肉眼上与卵巢畸胎瘤相似的网膜肿瘤。通过单孔腹腔镜手术成功切除了卵巢和网膜畸胎瘤。网膜肿瘤的组织病理学诊断为寄生性成熟囊性畸胎瘤。
