latissimus dorsi flap (lat flap)

A type of surgery to rebuild the shape of the breast after a mastectomy.  A muscle in the back called the latissimus dorsi, along with skin, fat, and blood vessels, is moved from the back to the chest to form a new breast mound or to form a pocket for a breast implant.  This is usually done by passing the muscle tissue and blood vessels through a tunnel under the skin to the chest.  A latissimus dorsi flap is a type of breast reconstruction.

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