ImagesElectrically Silent Muscle Visible by UltrasoundWalker, Francis O. MD; MacDonald, James A. MDAuthor Information Department of Neurology, Wake Forest University School of Medicine, Winston-Salem, NC. The authors declare no conflict of interest. Reprints: Francis O. Walker MD, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem NC 27157-1078 (e-mail: [email protected]). Journal of Clinical Neuromuscular Disease: March 2012 - Volume 13 - Issue 3 - p 159-161 doi: 10.1097/CND.0b013e31822721e4 Buy Metrics Abstract A 65-year-old woman with multiple chronic cranial neuropathies had spinal accessory innervated muscles that were virtually invisible to electromyography. Ultrasound imaging revealed the extensive atrophy and increased echogenicity that corresponded to the thinness of the muscles and their loss of insertional activity. In patients with severe atrophy of trapezius or sternocleidomastoid muscles, ultrasound may help in identify chronically denervated muscle. © 2012 Lippincott Williams & Wilkins, Inc.