Computed tomography of the breast: a valuable adjunct to mammography in selected cases

Computed tomography (CT) is not often used for the further assessment of a mass in the breast. In the case presented it proved to be invaluable in demonstrating a very posterior breast mass previously suboptimally demonstrated on mammography, not palpable clinically, and not visualized on ultrasound examination. The predicament of a very posterior breast mass is highlighted and it is suggested that present-day routine craniocaudal and oblique views may not be adequate to show such a mass even if meticulous attention to radiographic technique is given. If the supine-oblique view with balloon compression cannot be obtained, CT in the prone position with the breasts dependent may be the best alternative. Fine needle aspiration biopsy can be performed under CT guidance in such cases.