Dear diligence, The reason to do the spot compression is to further evaluate the nodular density seen on the mammogram. Sometimes it is just normal breast tissue folded upon itself, with spot compression it is flattened out. Fibroglandular tissue is normal breast tissue, and no further areas of concern were seen. If the density on the mammogram was still present with the spot compression, that would be a suspicious finding that would require further investigation.
Breast pain is a common breast symptom. The reason for breast pain is not clearly understood, and is not usually associated with breast cancer. Breast pain is sometimes associated with hormonal variations and is then called cyclical breast pain. Noncyclical breast pain does not seem to be linked to hormonal variations and is often localized to one area of the breast tissue. Noncyclical breast pain may or may not be the result of an injury to the breast.
As this pain is different and new, having it evaluated is prudent. Breast pain is evaluated based on the history of the pain you would give to the health care professional, as well as a physical examination. The need for further testing would be determined based on the above findings. If you have not already done so, have a discussion with your physician regarding the mammogram findings and your symptoms. If you are still concerned having a second opinion is always an option.