Giant sacrococcygeal teratoma in newborns Yenidoğanda dev sakrokoksigeal teratom

Fig. 2 A sacrococcygeal teratoma is a tumor that develops at the base of the coccyx. It occurs in 1 out of every 35,000–40,000 live births and is the most common tumor in newborns [1]. The tumor originates during embryonic development when the primitive streak fails to differentiate among mesodermal, ectodermal, and endodermal tissues in the embryonic disc [2]. A 2850 g girl was born by cesarean delivery to a healthy 32-year-old mother after an uncomplicated gestation of 38 weeks. At birth, the healthy, actively crying infant was found to have a large mass attached to her sacrococcygeal region. A magnetic resonance imaging (MRI) scan showed a regularly marginated, thinwalled 6 x 12 x 15 cm cystic presacral tumor that was exerting significant mass effect and displacing the patient’s rectum, anus and gluteal muscles. The MRI showed two distinct, well-circumscribed, thin-walled cystic components with homogeneous high protein and serous fluid contents. The solid portion of the mass contained large fatty tissue that had a high signal on T1and T2-weighted MR images and decreased signal intensity on T2-weighted images with fat suppression (Figures 1, 2). The patient was referred to our pediatric department to be assessed for surgical correction. Surgery was performed when the baby was 1 week old, and the mass was excised. Histopathological examination of the excised mass confirmed sacrococcygeal teratoma.