I am 57 and post menopause times 5 years.  I have a small hard pea sized lump in my right upper breast with bloody discharge in the right nipple and a feeling of being bruised with no visable brusing. My mammogram was normal and an ultrasound showed a small mass. I was told that it couldn't be clearly defined as solid or fluid filled. He also took a culture of the fluid from my nipple...it came back saying I had a strep infection.  He prescribed an antibiotic 3 times a day for 10 days, with no improvement after that treatment.   My primary doctor was concerned and sent me to a surgeon for a biopsy. The surgeon seemed to just dismiss the whole thing as a cyst and sent me on my way. What do you recommend I do next.  My other major health concerns are I am diabetic, overweight, had a precancerous thyroid nodual with a total thyoidectomy performed and psoriatic psoriasis.... Ruth