For patients
MDH information for health professionals
External links
Minnesota Department of Health (MDH)
Wisconsin Department of Health Services
Infectious disease reporting—MN
Infectious disease reporting—WI
HER2 Fluorescence in Situ Hybridization (FISH)
HER2 is a gene that can become amplified in several types of cancers, including breast, gastric, esophageal and lung to name a few.
A normal result would show cells with only 2 copies of both HER2 and centromere 17, a HER2 copy: centromere 17 copy ratio of <2.0.
An abnormal amplified HER2 (red signal) to centromere 17 (green signal) ratio test result.