Ushakov F B, Meirow D, Prus D, Libson E, BenShushan A, Rojansky N
Departments of Obstetrics and Gynecology, Hadassah Hebrew University Medical Center, Ein-Kerem, Jerusalem, Israel.
Eur J Obstet Gynecol Reprod Biol. 1998 Oct;81(1):77-82. doi: 10.1016/s0301-2115(98)00144-4.
Two cases of a parasitic omental teratoma which originated from an ovarian dermoid that underwent torsion, autoamputation and omental reimplantation are presented. A review of the literature revealed 23 additional cases of omental teratoma which occurred mostly in females. In some cases, the mature teratoma of the omentum showed histological evidence of ovarian stroma, and was associated with a dermoid tumor of the remaining contralateral ovary. It is generally believed that autoamputation and reimplantation of an ovarian dermoid cyst is the most common etiology of omental teratomas. Abdominal pain is the main presenting symptom of these tumors, and on physical examination a mobile abdominal or pelvic mass is often found. Both ultrasonography with colour flow Doppler and CT-scan are helpful in the diagnosis of dermoid tumors, but the correct diagnosis of omental localisation is extremely difficult. Mature omental teratomas may be treated by simple resection. The immature teratomas of the greater omentum, however, are potentially malignant tumors requiring postoperative chemotherapy and radiotherapy.
本文报告两例寄生性网膜畸胎瘤，其起源于发生扭转、自截并网膜再植的卵巢皮样囊肿。文献回顾显示另外还有23例网膜畸胎瘤病例，大多发生于女性。在某些病例中，网膜成熟畸胎瘤显示有卵巢间质的组织学证据，并与对侧剩余卵巢的皮样囊肿相关。一般认为卵巢皮样囊肿的自截和再植是网膜畸胎瘤最常见的病因。腹痛是这些肿瘤的主要表现症状，体格检查时常常可发现可活动的腹部或盆腔肿块。彩色多普勒超声检查和CT扫描对皮样囊肿的诊断均有帮助，但要准确诊断网膜定位极其困难。成熟网膜畸胎瘤可行单纯切除术治疗。然而，大网膜未成熟畸胎瘤是潜在的恶性肿瘤，术后需要化疗和放疗。
