ABSTRACT

A molar pregnancy is a gestational trophoblastic disease that grows into a mass in the uterine cavity that has swollen or hydrophic chorionic villi (distention of the chorionic villi by fluid). The villi grow into grape-like clusters. On ultrasound scan this is described as ‘honeycomb’ or ‘snow storm’ appearance. Molar pregnancies are categorized as partial and complete moles. If untreated, these will almost always end in a spontaneous miscarriage. However, when diagnosed on ultrasound scan, women are offered a surgical evacuation of the uterus. Medical management is not recommended for molar pregnancy in view of theoretical risk of emboli of vesicles from the uterus.