Yasumi Shunsuke, Matsumoto Harunobu, Sato Miho, Obata Eri, Nasu Kaei
Obstetrics and Gynecology, Nakatsu Municipal Hospital, Nakatsu, JPN.
Cureus. 2024 Oct 16;16(10):e71659. doi: 10.7759/cureus.71659. eCollection 2024 Oct.
Spontaneous retroperitoneal parasitic leiomyomas are extremely rare and are mostly located in the pelvic cavity. Herein, we present a case of a small primary parasitic leiomyoma arising in the retroperitoneum. A 46-year-old Japanese woman presented with iron deficiency anemia. The patient had not undergone any abdominal surgeries. Transvaginal ultrasonography and MRI revealed multiple uterine myomas and an 18-mm, low-intensity mass adjacent to the uterus. The patient underwent a total laparoscopic hysterectomy. A solitary retroperitoneal tumor in the pouch of Douglas was resected. Histologic examination of the resected retroperitoneal tumor revealed a well-circumscribed benign leiomyoma. In this case, we suggest that retroperitoneal primary parasitic leiomyoma may have arisen independently of uterine leiomyoma. Further investigations of similar cases may fully elucidate the pathogenesis of primary retroperitoneal parasitic leiomyomas.
自发性腹膜后寄生性平滑肌瘤极为罕见，大多位于盆腔。在此，我们报告一例发生于腹膜后的原发性小寄生性平滑肌瘤病例。一名46岁日本女性因缺铁性贫血就诊。该患者未曾接受过任何腹部手术。经阴道超声检查和磁共振成像显示多发性子宫肌瘤以及一个与子宫相邻的18毫米低强度肿块。患者接受了全腹腔镜子宫切除术。切除了Douglas窝内的一个孤立性腹膜后肿瘤。对切除的腹膜后肿瘤进行组织学检查显示为边界清楚的良性平滑肌瘤。在本病例中，我们认为腹膜后原发性寄生性平滑肌瘤可能独立于子宫平滑肌瘤而发生。对类似病例的进一步研究可能会充分阐明原发性腹膜后寄生性平滑肌瘤的发病机制。
