Large foetal sacrococcygeal teratoma complicated by preterm premature rupture of membranes and maternal preeclampsia

A 22-year-old patient, having 29 weeks’ gestation, was referred to Thomas Jefferson University Hospital (Philadelphia, Pennsylvania) after presenting generalized oedema and high blood pressure. The patient was known to carry a foetus with a sacrococcygeal mass and polyhydramnios. A mirror syndrome affecting the mother and cardiac failure in the foetus was initially suspected. Despite some findings indicating poor prognosis for this foetus (i.e. diagnosis in the second trimester, a large rapid growing mass, polyhydramnios, maternal hypertensive disorder and preterm delivery), the neonatal outcome was good and early corrective surgery was performed on the second day of life.