A majority of breast diseases are noncancerous.
A breast tumor is an abnormal mass of tissue in the breast as a result of neoplasia. A breast neoplasm may be benign, as in fibroadenoma, or it may be malignant, in which case it is termed breast cancer. Either case commonly presents as a breast lump. Approximately 7% of breast lumps are fibroadenomas and 10% are breast cancer, the rest being other benign conditions or no disease.
Phyllodes tumor is a fibroepithelial tumor which can either benign, borderline or malignant.
Among women worldwide, breast cancer is the most common cause of cancer death. Breast self-examination (BSE) is an easy but unreliable method for finding possible breast cancer. Factors that appear to be implicated in decreasing the risk of, early diagnosis of, or recurrence of breast cancer are regular breast examinations by health care professionals, regular mammograms, self-examination of breasts, healthy diet, and exercise to decrease excess body fat.
Fibrocystic breast changes
Also called: fibrocystic breast disease, chronic cystic mastitis, diffuse cystic mastopathy, mammary dysplasia
Infections and inflammations
These may be caused among others by trauma, secretory stasis/milk engorgement, hormonal stimulation, infections or autoimmune reactions. Repeated occurrence unrelated to lactation requires endocrinological examination.
- bacterial mastitis
- mastitis from milk engorgement or secretory stasis
- chronic subareolar abscess
- tuberculosis of the breast
- syphilis of the breast
- retromammary abscess
- actinomycosis of the breast
- duct ectasia syndrome
- breast engorgement
Other breast conditions
- Mondor’s disease
- Paget's disease of the breast
- nipple discharge, galactorrhea
- breast cyst
- Salzman, B; Fleegle, S; Tully, AS (15 August 2012). "Common breast problems". American Family Physician. 86 (4): 343–9. PMID 22963023.
- "MedlinePlus: Breast Diseases".
- Page 739 in: Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson. Robbins Basic Pathology. Philadelphia: Saunders. ISBN 1-4160-2973-7. 8th edition.
- World Health Organization (February 2006). "Fact sheet No. 297: Cancer". Retrieved 2007-04-26.
- Breast Self Examination at The Breast Site
- Seven things you should know about breast cancer risk Harvard College. Last updated June 2008
- Irshad, A.; Ackerman, S. J.; Pope, T. L.; Moses, C. K.; Rumboldt, T.; Panzegrau, B. (2008). "Rare Breast Lesions: Correlation of Imaging and Histologic Features with WHO Classification1". Radiographics. 28 (5): 1399–1414. doi:10.1148/rg.285075743. PMID 18794315.