My son has a lump on his left breast that is approx. 1.9x0.6cm mostly cystic mass lateral and posterior to the areola. He is 21 years old, about 5'9, around 250lb, healthy otherwise, has had a mammogram and ultrasound, thus far. The report states "heterogeneous retroareolar mass. Differential considerations would include abscess, hematoma or neoplasm. Biopsy is recommended. If abscess is suspected antibiotic therapy prior to needle aspiration would be prudent. His dr. is setting him up for a visit with a surgeon for a biopsy and did give him a round of strong antibiotics. Can you tell me what this means in layman's terms? Is it serious? The lump is moveable and very painful, right now he is taking lortabs 7.5 for the pain. If you can enlighten us any at all on this subject it would be greatly appreciated. Thank You.