Breast disease

	Breast disease;
MeSH	D001941

Breast diseases can be classified either with disorders of the integuement, or disorders of the reproductive system.

Cancer

A majority of breast diseases are noncancerous.^[1]

Breast Pain

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.

Pre-malignant diseases

Carcinoma in situ, a pre-malignant condition which can progress to a malignant cancer

Malignant diseases

Malignant diseases include:

Breast cancer
Paget’s disease of the nipple, also known as Paget’s disease of the breast

Benign conditions

Benign conditions include:

Congenital disorders
- inverted nipple
- supernumerary nipples/supernumerary breasts (polymazia / polymastia) /duplicated nipples
Aberrations of normal development and involution
- cyclical nodularity
- breast cysts
- fibroadenoma - benign tumor
- gynecomastia (males)
- nipple discharge, galactorrhea
- mammary fistula
Fibrocystic disease / Fibrocystic changes
- cysts
- epithelial hyperplasia
- epithelial metaplasia
- papillomas
- adenosis
Pregnancy-related
- galactocoele

Fibrocystic Breast Condition

Also called: fibrocystic breast disease, Chronic cystic mastitis, Diffuse cystic mastopathy, Mammary dysplasia

Discharge from the nipples

Abnormal nipples

Nipples

Inverted nipples

Inverted nipple

Mastitis

- bacterial mastitis
- mastitis from milk engorgement or secretory stasis
- mastitis of mumps
- chronic intramammary abscess
- chronic subareolar abscess
- tuberculosis of the breast
- syphilis of the breast
- retromammary abscess
- actinomycosis of the breast
- Mondor’s disease
- duct ectasia syndrome
- breast engorgement

References

↑ "MedlinePlus: Breast Diseases".