This illustration with associated mammogram shows the soft tissue structures typical of a pre-menopausal breast. The radiograph should illustrate a thin skin margin with no retraction of either skin or nipple. The glandular tissue is interspersed with fat and there are relatively regular bands of suspensory ligaments known as Cooper’s ligaments. Note that the radiograph shows no dominant or irregular mass and no evidence of any microcalcifications which are both findings which may be observed in carcinomas.