Figure 8 (A, B).

A 43-year-old female with metastatic breast cancer. Axial fat-suppressed, contrast-enhanced T1W (A) image shows abnormal enhancing soft tissue metastases along the right anterior chest wall, partially encasing the trunks of the right brachial plexus (arrowheads). Also seen in this image are bilateral enhancing pulmonary metastases (arrows). The abnormal perineural soft tissue (arrow) extends into the axilla, encasing the divisions and cords of the plexus, as seen on the sagittal fat-suppressed T1W image (B)