The page below is a sample from the LabCE course HER2 Testing in Breast Cancer. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Breast Cancer Sample - Normal for HER2 Gene Copy Number

This is an image of a HER2FISH stain in a breast cancer sample. It is considered to have a normal HER2 gene copy number since there are 2 copies of the gene HER2(orange) and 2 copies of chromosome 17 centromere (green).