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Trophoblastic Tumor
Definition 1
A gestational or non-gestational neoplasm composed of neoplastic trophoblastic cells. Representative examples include hydatidiform mole and choriocarcinoma. (NCI Thesaurus)
Definition 2
Trophoblastic growth, which may be gestational or nongestational in origin. Trophoblastic neoplasia resulting from pregnancy is often described as gestational trophoblastic disease to distinguish it from germ cell tumors which frequently show trophoblastic elements, and from the trophoblastic differentiation which sometimes occurs in a wide variety of epithelial cancers. Gestational trophoblastic growth has several forms, including HYDATIDIFORM MOLE and CHORIOCARCINOMA. (From Holland et al., Cancer Medicine, 3d ed, p1691) (NLM, Medical Subject Headings)
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