Can large fetal cystic hygromas be delivered vaginally?

Fetal cystic hygroma is a rare developmental congenital anomaly of the lymphatic system, characterized by the formation of a multilocular, variably sized cystic mass. The incidence of cystic hygroma is estimated to be 1:6,000 pregnancies, but it is a relatively common anomaly in miscarried fetuses, with a frequency of 1:875 [1]. Among the cystic hygroma, the septate cystic hygroma carry poor perinatal outcome and management difficulties after birth; hence, the mode of delivery of cystic hygroma babies needs special concern. There are four major concerns in such patients: