Huge myoid hamartoma of the breast treated with reduction mammaplasty: report of a case.

Breast hamartoma is an uncommon benign tumor characterized by the variety of component tissues. Adipose tissue, mammary glands, and fibrous tissue in various proportions are the main components and form a well-circumscribed mass. Myoid (muscular) hamartoma is an extremely rare subtype of breast hamartoma, which contains an additional smooth muscle component. Inadequate breast contour and nipple-areola complex malposition and expansion can occur after resection of a large myoid hamartoma. Immediate mammaplasty for the affected breast, using the dermoglandular flap technique, is required to provide symmetry of the bilateral breasts. We report a case of myoid hamartoma that was larger than ever documented before. An acceptable aesthetic result was achieved by resection and application of reduction mammaplasty in a single-stage operation.