Jefferson University Hospitals

Fluorescence in Situ Hybridization (FISH)

If your physician suspects bladder or ureter cancer, a FISH test may be requested. FISH is an abbreviation of fluorescence in situ hybridization.

What Does the FISH Test Involve?

This testing technique is used to identify particular DNA sequences in cells, tissues and tumors that may be cancerous. Jefferson urologists will take a tissue sample from the suspected area for the testing. This particular test may provide your physician with a more detailed result than perhaps an initial cancer diagnosis.

A more specific treatment plan can be determined as a result.