Proximal rupture of long head biceps brachii tendon

Discussion:

Proximal long head of biceps brachii tendon rupture with substantial retraction / separation. Bony irregularity at the proximal aspect of the bicipital grove underlying the subscapularis tendon insertion may have resulted in attritional wear of the biceps tendon at this site. A supraspinatus partial insertion 'rim rent' type tendon tear is also seen. 

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