Breast Cysts Flashcards
What are cysts?
Epithelial lines fluid filled cavities
Why do they form?
When lobules become distended due to blockage
What age group do they typically affect?
Perimenopausal
What percentage of women will experience a breast cyst in their life?
7%
What percentage of presentations with palpable breast masses are cysts?
15%
What clinical features are associated?
Singular or multiple lumps One or both breasts Distinct, smooth masses Can be any size May be fluctant
Can they be tender on palpatation?
Yes
What shape do they typically have on mammography?
Halo shape
How can they usually be definitively diagnosed?
Ultrasound - fluid filled cavity
How are they managed?
Aspiration - if fluid free of blood or the lump disappears cancer can be excluded, otherwise fluid sent for cytology or excised
Do patients with cysts have a increased risk of developing breast cancer in the future?
Yes 2-3x increased risk
Fibrocystic changes can occur due to multiple small cysts and fibrotic areas. Although benign, this is often associated with…
Tenderness
Asymmetry
The fibrosis can mask malignancy
Are they fixed to surrounding tissue?
No
