Rotator interval injury

Case contributed by Ali Abougazia


Right shoulder pain on raising the right arm. History of motor vehicle accident 5 years ago.

Patient Data

Age: 45 years
Gender: Male

Right shoulder MRI


The coraco-humeral ligament (rotator interval roof) is thickened eliciting low T1, intermediate T2 and high PDFS signals.

Osteoarthritic changes of the acromio-clavicular joint with narrowed joint space, irregularity and small marginal osteophytosis of its opposing articular surfaces associated with mild joint effusion. A distal inferior acromial osteophyte is seen slightly indenting the rotator interval roof.

Case Discussion

Chronic rotator interval injury; mostly due to impingement by the associated acromio-clavicular osteoarthritis.

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