NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,091 terms related to cancer and medicine.

embryo cryopreservation
(EM-bree-oh KRY-oh-PREH-zer-VAY-shun)
The process of freezing one or more embryos to save them for future use. Embryo cryopreservation involves in vitro fertilization, a procedure in which eggs are removed from a woman’s ovary and combined with sperm in the laboratory to form embryos. The embryos are frozen and can later be thawed and placed in a woman’s uterus. Embryo cryopreservation is a type of fertility preservation. It may be useful for women with cancer who want to have children after having radiation therapy, chemotherapy, or certain types of surgery, which can cause infertility. Also called embryo banking and embryo freezing.