A hydatidiform mole is a rare mass or growth that forms inside the uterus at the beginning of a pregnancy. It is a type of gestational trophoblastic disease (GTD).
Gestational trophoblastic disease Choriocarcinoma(a cancerous form of GTD)
Hydatid mole; Molar pregnancy
Causes, incidence, and risk factors
A hydatidiform mole, or molar pregnancy, results from over-production of the tissue that is supposed to develop into the placenta. The placenta normally feeds a fetus during pregnancy. In this condition, the tissues develop into an abnormal growth, called a mass.
There are two types:
- Partial molar pregnancy
- Complete molar pregnancy
A partial molar pregnancy means there is an abnormal placenta and some fetal development.
In a complete molar pregnancy, there is an abnormal placenta but no fetus.
Both forms are due to problems during fertilization. The exact cause of fertilization problems are unknown. However, a diet low in protein, animal fat, and vitamin A may play a role.