Ovarian biopsy, endoscope view. Instrument being used to take a biopsy from the right ovary (white, centre) and fallopian tube (vertical tube to right of the ovary). At upper left is the uterus (womb), with the left ovary below it. During a biopsy cells are removed from a tissue or organ for examination under the microscope. It can be used to diagnose disease, or discover the extent of a disease.