Breast surgery. Image 3 of 5. Underside of a 54- year-old woman's right breast, showing its ductile structure, during a breast reduction operation (reduction mammoplasty). Excess breast tissue will be removed, resulting in the patient having smaller, more symmetrical breasts. The patient had a total of 1.1 kilograms of breast tissue removed and went from a G cup size (left breast) and an F cup size (right breast) to a DD cup size. See M590/294-298 for a sequence showing breast surgery.