There are large left epidural fluid collections consistent with pseudomeningocoeles, at C7, C8 and T1 nerve root levels consistent with preganglionic nerve root emotions. These do not extend into the extraforaminal space and their size is best demonstrated on the myelographic sequence. The spinal cord is mildly displaced to the right. More laterally, the nerve roots of the upper brachial plexus are mildly enlarged consistent with neuropraxia. The nerves of the lower brachial plexus, can be traced from just outside the foramina, and are diffusely enlarged but appear contiguous at least to the infraclavicular level. The shoulder joint is obscured by metal artefact but advanced atrophy of the pectoralis muscles and probably the deltoid is evident.
Conclusion: Preganglionic tears of the left C7 to T1 nerve roots.