![](https://webarchive.library.unt.edu/eot2008/20081021193459im_/http://www.nci.nih.gov/images/spacer.gif) |
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(MOH-ler PREG-nun-see)
![](https://webarchive.library.unt.edu/eot2008/20081021193459im_/http://www.nci.nih.gov/images/spacer.gif)
| 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 benign (noncancerous) but it may spread to nearby tissues (invasive mole). It may also become a malignant tumor called choriocarcinoma. Molar pregnancy is the most common type of gestational trophoblastic tumor. Also called hydatidiform mole. |
Previous Definitions: | modality, modified radical mastectomy, modulate, Mohs micrographic surgery, Mohs surgery | Next Definitions: | mold, mole, molecular diagnosis, molecular marker, molecular mass |
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