Prenatal Diagnosis and Management of Sacrococcygeal Teratoma

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Abstract
Five fetuses, each with a sacrococcygeal teratoma (SCT) were delivered at the Royal Women's Hospital while 2 fetuses, each with a SCT were delivered at Monash Medical Centre in 1998. The number of cases reported in this series is higher than expected but it most likely occurred due to chance. The diagnosis was made prenatally in all cases. Three of the SCT were entirely external while the remaining 4 were external with intrapelvic extension. Rapid growth of the SCT occurred in 3 fetuses. This was associated with polyhydramnios in 2 fetuses. No fetus developed nonimmune hydrops. Six infants were liveborn (perinatal mortality rate of 14%), 3 of whom were delivered prior to 37 weeks' gestation. Two infants were delivered by classical Caesarean section. The remaining 4 infants were delivered by lower uterine segment Caesarean section. There was 1 perinatal death. This stillborn infant was delivered vaginally. The 6 surgical resections were performed between the 4th and 10th postnatal days. Histological examination confirmed the diagnosis of benign SCT in each. One infant developed a recurrence at 2 months of age and required chemotherapy.