MR IMAGING OF THE SACRAL PLEXUS - ABNORMAL FINDINGS

Patients with symptoms of sacral plexopathy, radiculopathy, or sciatic a may have disease originating in the neural elements, sacrum, bony pe lvis, pelvic soft tissues, or gluteal region. As illustrated in our co mpanion article [1], the sacral plexus and surrounding structures can be visualized in detail with MR imaging. This pictorial essay illustra tes the MR findings in a number of abnormalities affecting the sacral plexus. Multiplanar MR examination is particularly helpful in defining neural levels of involvement by disease in this region.