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Test ID: 81504    
HER2, Breast, Quantitative Immunohistochemistry, Automated

Secondary ID A test code used for billing and in test definitions created prior to November 2011


NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Useful For Suggests clinical disorders or settings where the test may be helpful

Determining overexpression of HER2 protein on formalin-fixed, paraffin-embedded tissue sections


This FDA-approved test is most frequently used to evaluate HER2 overexpression in breast cancer.

Reflex Tests Lists test(s) that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial test(s)

Test IDReporting NameAvailable SeparatelyAlways Performed
FHER2HER2 Amp, Breast Cancer, FISHYesNo

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

Cases that are equivocal (2+) by immunohistochemical stain will reflex to HER2 FISH at an additional charge.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

US Food and Drug Administration (FDA)-Approved Ventana Pathway Immunoperoxidase Stain

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

HER2, Breast IHC, Automated

Aliases Lists additional common names for a test, as an aid in searching

c-neu Immunoperoxidase Stain
c-erbB2 Immunoperoxidase Stain