Epidemiology
- Most common benign lesion of the breast
- Usually occurs in pre-menopausal women, likely hormone mediated
Etiology
Pathophysiology
Benign fibrosis and cyst tissue formation
Clinical features
- Premenstrual bilateral multifocal breast pain (cyclic mastalgia)
- Tender or nontender breast nodules
- Clear or slightly milky nipple discharge
Subtypes and variants
- Apocrine metaplasia
- No risk
- A-Okay
- Sclerosing adenosis
- Some risk
- Sclerosing = Some
- Atypical hyperplasia
- Significant risk
- Atypical likely to Aturn into cancer