Fig. 11
From: Non-neoplastic pathology at the crossroads between neck imaging and cardiothoracic imaging
Traction injury of the brachial plexus. Patient with acute traumatic left C7 nerve root avulsion secondary to traction injury of the brachial plexus. Axial (a) short tau inversion recover (STIR) MR images demonstrate increased signal (asterisk) of the left neck base consistent with edema of the soft tissues at the site of injury. Coronal (b) STIR MR image demonstrate a bright signal fluid collection (arrow) which communicates with the cerebral spinal fluid of the spinal cord consistent with posttraumatic pseudomeningocele. Coronal (c) STIR MR image of a companion case demonstrating diffuse increased signal (asterisk) of the left neck base and thoracic inlet consistent with edema due to brachial plexus traction injury