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                                          ž Gestational trophoblastic disease (GTD), often referred to as a molar pregnancy, is a group of disorders that are the result of an abnormal combination of male and female gametes.
ž The term trophoblast in the title of this disease relates to the cells that surround the developing gestation.
ž Trophoblastic cells are those cells that produce hCG.
ž GTD results in the excessive growth of the trophoblastic cells.
ž Therefore, there are excessive amounts of hCG in the maternal
circulation.
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