SACRO - COCCYGEAL TERATOMA: WHAT DO WE EXPECT FROM IMAGING

Sacro-coccygeal teratomas (SCT) are rare congenital tumors, although they are the most common in the neonatal period. The revealing clinical situation is variable. It may be a hydramnios before birth, a sacral or gluteal mass at birth, or signs of urinary or digestive compression later. Ante-natal diagnosis of SCT requires regular ultrasound monitoring to assess the evolution of the tumor and its possible impact on the fetus, and to decide the modality and timing of delivery. Before a sacro-coccygeal mass, CT and MRI can evoke the diagnosis, by visualizing a very heterogeneous tumor. They make it possible, among other things, to appreciate its extension and its reports, and to establish a classification. Tumor excision is the only effective treatment for TSC. It is indicated as soon as the diagnosis is made, even in the first days of life. The purpose of this article is to illustrate the importance of imaging techniques in the diagnosis, characterization, evaluation of lesion extension, management orientation and postoperative monitoring.