Hello, my husband has a visit with his primary care doctor on Tuesday, but is fretting due to finding a mass under his left breast area, it is not nodular, it is about 3 inches long and 1 inch wide, on his rib area, it is separate from his breast tissue when manipulated, it feels fatty. He has a history of testicular cancer and under went chemotherapy for 4 months following removal of his diseased testicle, as his numbers elevated. He just had his check up in September and all was good. I just know the stress is causing him undue worry. Any suggestions. He works in construction, lifting, but it does not seem to be hernia, nonpainful.