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Acromioclavicular joint injury - type III (MRI)

Case contributed by Dr Bahman Rasuli


Shoulder trauma.

Patient Data

Age: 35 years
Gender: Male

Disruption of the superior and inferior acromioclavicular (AC) ligaments, coracoclavicular ligament, and ruptured joint capsule is seen associated with joint separation superior displacement of the clavicle relative to the acromion.

The trapezius muscle is partially torn.

Abnormal intra-substance increased signal and thickening is present along the course of subscapularis tendon, likely related to tendinosis.

Acromion type II also is noted.

Case Discussion

Patient referred to us with the history of shoulder pain and immobility after direct shoulder trauma. Regarding the imaging findings, this is a type 3 acromioclavicular joint injury according to Rockwood classification.

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Case information

rID: 63422
Published: 21st Oct 2018
Last edited: 11th Aug 2020
Inclusion in quiz mode: Included
Institution: Jame Jam Imaging Center

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