Breast lumps causes

	Breast lumps Microchapters
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Causes

Cysts
- Common in premenopausal women > 40 years old
- Less frequent in younger women (10% of breast masses in women < 40 years old)
- Uncommon in postmenopausal women not on hormone replacement therapy (HRT)
- Often fluctuate with menstrual cycle
- Especially common during periods of hormonal irregularity
Fibroadenomas
Prominent Fibrocystic Change (without a dominant mass)
Fat Necrosis
Malignancy