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.
Goldstein DP, Berkowitz RS. Gestational trophoblastic disease. In: Niederhuber JE, Armitage JO, Doroshow JH, Kastan MB, Tepper JE, eds. Abeloff's Clinical Oncology. 5th ed. Philadelphia, PA: Elsevier Churchill Livingstone; 2013:chap 90.
McGee J, Covens A. Gestational trophoblastic disease: hydatidiform mole, nonmetastatic and metastatic gestational trophoblastic tumor: diagnosis and management. In: Lentz GM, Lobo RA, Gershenson DM, Katz VL. Comprehensive Gynecology. 6th ed. Philadelphia, PA: Mosby Elsevier; 2012:chap 35.
Braunstein GD. Endocrine changes in pregnancy. In: Melmed S, Polonsky KS, Larsen PR, Kronenberg HM, eds. Williams Textbook of Endocrinology. 12th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 21.
Update Date 6/11/2014
Updated by: Cynthia D. White, MD, Fellow American College of Obstetricians and Gynecologists, Group Health Cooperative, Bellevue, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.