A case of immature sacrococcygeal teratoma diagnosed by prenatal ultrasonography.

Jo, Eun Kyu; Ann, Chi Ok; Shim, Hyun Jin; Kim, Yun Sook; Bae, Dong Han; Yang, Seoung Ha; Lee, Ji Hye

doi:2011.54.5.269

Case Report

Korean Journal of Obstetrics & Gynecology 2011;54(5):269-272.
DOI: https://doi.org/10.5468/KJOG.2011.54.5.269 Published online May 1, 2011.

A case of immature sacrococcygeal teratoma diagnosed by prenatal ultrasonography.

Eun Kyu Jo, Chi Ok Ann, Hyun Jin Shim, Yun Sook Kim, Dong Han Bae, Seoung Ha Yang, Ji Hye Lee

¹Department of Obstetrics and Gynecology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea. drsook@schmc.ac.kr
²Department of Pathology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea.

Abstract

Sacrococcygeal teratoma (SCT) is a rare subset of germ cell neoplasm and occurs in approximately 1 in 35,000 live births. Most SCTs are benign, but about 20% are malignant. They originate from totipotent cells from Hansen's node or primitive germ cells, but the exact etiology remains uncertain. Antenatal diagnosis of SCT can be made by ultrasound. The fetus with SCT remains at high risk for perinatal complications and death. Perinatal mortality and morbidity are most strongly related to high-output cardiac failure because of arteriovenous shunting within the tumor, subsequent fetal hydrops, polyhydramnios, and preterm delivery. Recently we have experienced a case of immature SCT with hydrops and polyhydrmnios diagnosed by prenatal ultrasonography at 21+5 weeks, resulted in stillbirth. We describe this case with a brief review of the literature.

Key Words: Immature sacrococcygeal teratoma, Ultrasonography