Glossary Term:


fluorescent in situ hybridization or FISH


floo-<b>res</b>-uhnt in <b>sy</b>-too <b>hi</b>-brid-ih-<b>ZAY</b>-shun


A test that can help look at chromosomes in cells and tissues. It uses special fluorescent dyes that only attach to certain parts of chromosomes and can find specific deoxyribonucleic acid (DNA) sequences. It can be used to diagnose, to evaluate prognosis (disease outlook), or to look at the remission of a disease. also called FISH.