Getting a Second Opinion on Your Pathology
You should ask for a second opinion from another pathologist for any discrepant diagnosis that is, one in which the pathology does not reflect the expectation of either the surgeon or the radiologist. For example, you may have microcalcifications that are suspicious for malignancy. These may have been sampled but not described in the pathology report. This would be a discrepant report and you should not be reassured that you have a benign disease.
You should also request a second opinion when the disease described is of microscopic proportions and is interpreted as cancer. This is also important when the actual tissue sample is small and you are given a recommendation for more extensive surgery and/or treatment.
A second opinion from a medical oncologist, surgeon or radiation oncologist will do nothing to correct misinformation or wrongful diagnosis in a pathology report. Any misinformation in the pathology report will have to be corrected by a review from another pathologist.
If you had a biopsy because calcifications were present in one part of your breast, you will want to be sure that all of them were removed during the biopsy. An X-ray of the tissue that was removed, called a "specimen mammogram," should show the presence of all the calcifications seen in the mammogram you had before your surgery. After your breast is healed, you will need to have another mammogram so that you can be absolutely sure that no calcifications or more DCIS or even a small amount of invasive breast cancer remain.