Erb palsy

Case contributed by Dr Dalia Ibrahim

Presentation

History of birth trauma and subsequent left shoulder mal-alignment.

Modality: CT

Drooping of the left shoulder girdle which appears atrophic (compared to the right side):

  • asymmetrical reduced/atrophic muscle volume of the left shoulder girdle compared to the right side.
  • the following osseous changes (glenohumeral dysplasia) include:
    • The humeral head appears small showing fragmentation and irregularity of its epiphysis. It shows posterior subluxation.
    • Signs of mild to moderate glenoid dysplasia evident by truncation of the posterior bony glenoid and indistinct margins.
    • Elongated coracoid process is noted.

Drooping of the left shoulder girdle which appears atrophic (compared to the right side):

  • asymmetrical reduced/atrophic muscle volume of the left shoulder girdle compared to the right side. 
  • the following osseous changes (glenohumeral dysplasia) include:
    • The humeral head appears small showing fragmentation and irregularity of its epiphysis. It shows posterior subluxation.
    • Signs of mild to moderate glenoid dysplasia evident by truncation of the posterior bony glenoid and indistinct margins. 
    • Elongated coracoid process is noted.

Case Discussion

The case demonstrates the chronic denervation sequel of Erb's palsy with left shoulder girdle muscular, osseous and soft tissue atrophic changes.

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Case Information

rID: 48626
Case created: 17th Oct 2016
Last edited: 18th Oct 2016
Inclusion in quiz mode: Included

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