endometrial biopsy

Pronunciation: (EN-doh-MEE-tree-ul BY-op-see)

A procedure in which a sample of tissue is taken from the endometrium (inner lining of the uterus) for examination under a microscope. A thin tube is inserted through the cervix into the uterus, and gentle scraping and suction are used to remove the sample.

Source: NCI Dictionary of Cancer Terms