Sepúlveda W H
Department of Obstetrics and Gynecology, Guillermo Grant Benavente Hospital, Concepción, Chile.
J Perinat Med. 1989;17(2):93-7. doi: 10.1515/jpme.1989.17.2.93.
Teratomas are tumors containing tissues derived from all three germinal cell layers. Most teratomas arise in the sacrococcygeal region, with a reported incidence of 1/40,000 births. During labor, severe dystocia may occur in infants with large tumors if delivered vaginally, with an extremely high fetal morbidity and mortality rate. Reported is a case of a large congenital sacrococcygeal teratoma diagnosed antepartum by sonography at 36 weeks pregnancy. This sonographic finding allowed us to avoid traumatic delivery. Cesarean section was performed, with the delivery of a 4.050-g female infant with a large sacrococcygeal tumor. Resection of the sacral mass was performed on the 5th day of life. Pathologic examination showed a mature sacrococcygeal teratoma weighing 620-g, and measuring 14-cm by 11-cm by 9-cm. The infant had an uneventful recovery. This report agrees with previous reported cases in which successful management of sacrococcygeal teratomas could be achieved with accurate prenatal diagnosis, atraumatic delivery, and prompt surgical intervention. The role of sonography in the management of these cases is stressed.
畸胎瘤是包含源自所有三个胚层组织的肿瘤。大多数畸胎瘤发生在骶尾部，据报道其发病率为1/40000活产。分娩时，如果经阴道分娩，患有大肿瘤的婴儿可能会发生严重难产，胎儿发病率和死亡率极高。本文报道了1例在妊娠36周时通过超声产前诊断出的巨大先天性骶尾部畸胎瘤病例。这一超声检查结果使我们避免了创伤性分娩。进行了剖宫产，娩出一名体重4050克、患有巨大骶尾部肿瘤的女婴。在出生后第5天对骶部肿块进行了切除。病理检查显示为一个成熟的骶尾部畸胎瘤，重620克，大小为14厘米×11厘米×9厘米。婴儿恢复顺利。本报告与先前报道的病例一致，即通过准确的产前诊断、无创伤性分娩和及时的手术干预，可以成功治疗骶尾部畸胎瘤。强调了超声在这些病例管理中的作用。
