Epidermal inclusion cyst after reduction mammoplasty.

Reduction mammoplasty has become an increasingly common surgical procedure in the United States. Because the technique generally involves repositioning of the nipple-areolar unit with infolding of a vascularized tissue pedicle, epidermal inclusion cysts may develop after the procedure. The authors encountered three cases of epidermal inclusion cysts after reduction mammoplasty and describe the associated mammographic and sonographic characteristics. The authors found that stereotaxic needle biopsy is useful for the diagnosis of these lesions.