gestational trophoblastic tumor

Any of a group of tumors that develops from trophoblastic cells (cells that help an embryo attach to the uterus and help form the placenta) after fertilization of an egg by a sperm. The two main types of gestational trophoblastic tumors are hydatidiform mole and choriocarcinoma. Also called gestational trophoblastic disease.

English dictionary of cancer terms . 2015.

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  • gestational trophoblastic disease — Any of a group of tumors that develops from trophoblastic cells (cells that help an embryo attach to the uterus and help form the placenta) after fertilization of an egg by a sperm. The two main types of gestational trophoblastic diseases are… …   English dictionary of cancer terms

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  • Choriocarcinoma — A highly malignant tumor that arises from trophoblastic cells within the uterus. Choriocarcinoma tends to be invasive and to metastasize early and widely through both the venous and lymphatic systems. Choriocarcinoma is one of the two types of… …   Medical dictionary

  • hydatidiform mole — A slow growing tumor that develops from trophoblastic cells (cells that help an embryo attach to the uterus and help form the placenta) after fertilization of an egg by a sperm. A hydatidiform mole contains many cysts (sacs of fluid). It is… …   English dictionary of cancer terms

  • molar pregnancy — A slow growing tumor that develops from trophoblastic cells (cells that help an embryo attach to the uterus and help form the placenta) after fertilization of an egg by a sperm. A molar pregnancy contains many cysts (sacs of fluid). It is usually …   English dictionary of cancer terms

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