gestational trophoblastic disease

A rare tumour that starts in the tissues that develop into the placenta during pregnancy and grows in the uterus (womb).

The non-cancerous (benign) form of the disease is called hydatidiform mole (or molar pregnancy). The rarer cancerous (malignant) form is called choriocarcinoma.

Also called gestational trophoblastic neoplasia or gestational trophoblastic tumour.