What is a sacrococcygeal teratoma (SCT)?
SCT is a tumor located at the superior portion of the buttocks which is comprised of different types of embryological tissue. The tumor usually has solid and cystic components and may be highly vascular. If diagnosed in the neonatal period, the vast majority of these tumors are benign; however, a few may be malignant. This tumor is very rare with an estimated occurrence between 1 in 35,000 and 1 in 40,000 live births. It is more common in females than males with a 4:1 ratio. The cause is unknown. A SCT is classified based on its anatomic location. Type I identifies a tumor that is completely external. Type II tumors are external with a small internal portion located in the pelvis. Type III is a mixed tumor with an external portion and a larger internal portion extending into the abdomen. Type IV is completely internal. What testing is recommended during pregnancy? Serial ultrasounds will follow the growth of the SCT and the health of the baby. Some babies may develop polyhydramnios (ex
