Mammograms can be performed on breast implants, if less compression is used than what is required on natural breast tissue. In both views of this breast reconstruction, the implant appears as a light, smooth-sided area. This implant is inserted into a pocket of chest walls muscle. The chest wall muscle appears as the medium-dark areas just outside the implant.
Note that the crainal-caudal view (taken from overhead) shows a smaller area than the mediolateral view (taken on a diagonal). This clearly show the benefit of two different views of the same breast. In the mediolateral view (on the right) axillary tissue as well as chest wall muscle can be seen.
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Austin Radiological Association, January 30, 2012.