I think the first thing to settle here is regarding the anatomic histopath diagnosis. The pathologist should tell from the appearance of the biopsy if the sample is consistent or not with breast cancer. The cERBB2 test is just a prognosticator and indicator of behavior of the cancer and response to certain form of treatment. This is a protein found in cells that increases the likelihood of the cancer being aggressive and hence, a faster course. Special drugs can be give for cERBB2 positive cancers such as Herceptin or Tykerb.
However, as I have mentioned, the diagnosis of cancer is not dependent on this test. It is primarily dependent on the pathologist's anatomic diagnosis and I believe you should ask your doctor about this.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.