Department of Surgery, Saint Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia.
Department of Obstetrics and Gynecology, University of Washington, Seattle, WA, USA.
BMC Surg. 2020 Nov 24;20(1):295. doi: 10.1186/s12893-020-00962-x.
Sacrococcygeal teratomas are tumors originating from pluripotent embryonic germ cell layers located in the fetal coccyx. These tumors are highly vascular if they undergo malignant transformation. Typically, they are found in infants and children and occasionally can be diagnosed prenatally. Adult cases are very rare, and represent tumors present since birth with delayed detection.
We describe a case of a giant sacrococcygeal teratoma in a 25 years old female college student presenting with right gluteal swelling of 4 months' duration. In addition to the huge disfiguring mass on the perineal area, she also had lower abdominal pain, urinary complaints, and difficulty with ambulation.
Pre-operative impression was of a sacrococcygeal mass and histopathology following complete surgical excision revealed a sacrococcygeal teratoma. She recovered well after surgery with no radiologic evidence of recurrence at six months.
Although rare, sacrococcygeal teratoma should be considered as a differential diagnosis for female adults presenting with perineal and/or pelvic masses. Complete surgical excision remains the mainstay of treatment.
骶尾部畸胎瘤是起源于胎儿尾骨多能胚胎生殖细胞层的肿瘤。如果发生恶性转化,这些肿瘤的血管非常丰富。它们通常发生在婴儿和儿童中,偶尔也可在产前诊断。成人病例非常罕见,代表出生时即存在的肿瘤,只是检测时间延迟。
我们描述了一位 25 岁女大学生的巨大骶尾部畸胎瘤病例,她因右侧臀部肿胀 4 个月就诊。除了会阴部巨大的畸形肿块外,她还伴有下腹痛、尿路症状和行走困难。
术前印象为骶尾部肿块,完整手术切除后的组织病理学检查显示为骶尾部畸胎瘤。她术后恢复良好,6 个月时无影像学复发证据。
虽然罕见,但骶尾部畸胎瘤应被视为女性成年人出现会阴和/或盆腔肿块的鉴别诊断。完全手术切除仍然是主要的治疗方法。