To describe and illustrate the most frequent MR patterns of shoulder muscle denervation.
To review of specific anatomic places commonly involved in this type of pathology.
We perform a diagnosis algorithm in order to simplify the association of denervated muscle and the nerve compromise
Weperformed a retrospective analysis of patients with shoulder muscle denervation in our institution with 1.5/3T MRI between the years 2014 and 2017,
correlating the radiological findings,
nerve compromise and etiology.
Peripheral nerve injury associated with muscular denervation is an uncommon cause of shoulder pain and could lead to mislead to other pathologies with similar clinical presentation.
The knowledge of the brachial plexus anatomy and the suprascapular and axillary nerve path are critical in orderto understand the correlation of the denervated muscle group with the compromised...
Findings and procedure details
The entrapment and compression neuropathies are usually diagnosed on the basis of clinical history and electrophysiologic studies (electromyography and nerve conduction studies).
MRI has provedsignificantly useful since it allows to identify the precise location of the injury depending on the affected muscle group and has aremarkable advantage over the EMG,
which does not show signs of muscle denervation up to 2-3 weeks after injury (Linda,
The denervated muscles show us the possible nerve compromised and guide us to find the location of...
The knowledge of the patterns of MRI muscle shoulder denervation in correlation with a correct understanding of the anatomy helps to locate the topography of the nerve injury and could determine the possible etiology cause in order to be attended.
Multimodality Imaging of Peripheral Neuropathies of the Upper Limb and Brachial Plexus 1.
MR patterns of denervation around the shoulder.
American Journal of Roentgenology,
Parsonage-Turner Syndrome: MR Imaging Findings and Clinical Information of 27 Patients.
& Contreras O,
Sindrome De Parsonage-Turner O Neuritis Braquial:...