Definition

Gestational trophoblastic disease (GTD) is a group of conditions in which tumors grow inside a woman’s uterus (womb). The abnormal cells start in the tissue that would normally become the placenta, the organ that develops during pregnancy to feed the fetus.

A baby may or may not develop during these types of pregnancies.

There are several types of GTD.

  • Choriocarcinoma (a type of cancer)
  • Hydatiform mole (also called a molar pregnancy)
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