Breast cyst

Overview
A breast cyst appears as a lump on the breast, which may appear to be similar to breast cancer but is generally benign. While cancer is the overgrowth of cells, a cyst is a closed sac having a distinct membrane and develosion on the nearby tissue.

Diagnosis
A preliminary test for the presence of a breast cyst is an ultrasound examination, which may determine whether the lump is malignant, i.e. cancerous.

Treatment
Typical treatment involves a Needle aspiration biopsy, or an incision and removal.