DDx ⬇
- Breast cancer
- Fatty breast enlargement of obesity
- Breast abscess (mastitis)
- Metastatic cancer, eg, prostate
Related DDx ⬆ ⬇
Etiology ⬆
- Physiologic: neonatal, pubertal, aging, obesity
- Endocrine: hyperprolactinemia, hyperthyroidism, Klinefelter syndrome, hypogonadism
- Systemic disease: chronic liver or renal disease
- Neoplasms: adrenal, testicular, lung, liver, breast
- Drugs (selected): alcohol, amiodarone, anabolic steroids, cimetidine, diazepam, digoxin, estrogens, finasteride, flutamide, isoniazid (INH), ketoconazole, marijuana, omeprazole, opioids, progestins, protease inhibitors & antiretrovirals, spironolactone, testosterone, tricyclic antidepressants.