EURORAD ESR

Case 10752

Parsonage Turner syndrome as a cause of fatty atrophy of multiple shoulder muscles

Author(s)
B Ashiq Zindha

Ramnad MRI and CT Scans, Ramnad, India; Email:dr_ashiqzindha@yahoo.co.in
 
Patient
male, 45 year(s)
 
 
  • Figure 1
    Axial T1W MRI Right shoulder
     

    Axial T1W image showing T1W hyperintense signal within the supraspinatus muscle (white arrow) suggestive of fat.

     
    Area of Interest: Musculoskeletal system; Neuroradiology peripheral nerve; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Significant atrophy of the deltoid (black arrow) and infraspinatus (white arrow) muscles is seen with predominant fat signal within the muscles. Only the tendon of the infraspinatus muscle appears hypointense in this...

     
    Area of Interest: Musculoskeletal system; Neuroradiology peripheral nerve; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Significant fat signal is noted within the subscapularis (black arrow) and teres minor (white arrow) muscles. Fatty atrophy of the deltoid muscle is also seen. Note the normal signal within the pectoralis muscles.

     
    Area of Interest: Musculoskeletal system; Neuroradiology peripheral nerve; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 2
    Coronal T2W MRI Right shoulder
     

    Significant hyperintense signal similar to subcutaneous fat is noted within the subscapularis muscle (black arrow). The patient was uncomfortable due to pain resulting in image degradation by motion blurring.

     
    Area of Interest: Musculoskeletal system; Neuroradiology peripheral nerve; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Significant atrophy and replacement of supraspinatus muscle (black arrow) by fat signal is seen. The supraspinatus tendon appears hypointense and intact.

     
    Area of Interest: Musculoskeletal system; Neuroradiology peripheral nerve; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;

    Significant fat signal is noted within the infraspinatus (black arrow) and teres minor (white arrow) muscles.

     
    Area of Interest: Musculoskeletal system; Neuroradiology peripheral nerve; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
  • Figure 3
    Sagittal T2W MRI Cervical spine

    Mid sagittal image of the cervical spine reveals no significant disc bulge/herniation, spinal canal stenosis or cord compression.

     
    Area of Interest: Musculoskeletal spine; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Inflammation;
     
     
Axial T1W image showing T1W hyperintense signal within the supraspinatus muscle (white arrow) suggestive of fat.
 
Significant atrophy of the deltoid (black arrow) and infraspinatus (white arrow) muscles is seen with predominant fat signal within the muscles. Only the tendon of the infraspinatus muscle appears hypointense in this section.
 
Significant fat signal is noted within the subscapularis (black arrow) and teres minor (white arrow) muscles. Fatty atrophy of the deltoid muscle is also seen. Note the normal signal within the pectoralis muscles.
 
Significant hyperintense signal similar to subcutaneous fat is noted within the subscapularis muscle (black arrow). The patient was uncomfortable due to pain resulting in image degradation by motion blurring.
 
Significant atrophy and replacement of supraspinatus muscle (black arrow) by fat signal is seen. The supraspinatus tendon appears hypointense and intact.
 
Significant fat signal is noted within the infraspinatus (black arrow) and teres minor (white arrow) muscles.
 
Mid sagittal image of the cervical spine reveals no significant disc bulge/herniation, spinal canal stenosis or cord compression.
 
 
 
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