Presentation
Intense acute shoulder pain and functional disability.
Patient Data
MRI shoulder
Calcific enthesopathy in the insertion site of the supraspinatus tendon where one of these has migrated into the cortical bone of the greater tuberosity.
Case Discussion
A complication of calcifying tendinitis is the migration of calcium deposits from the supraspinatus tendon into the subacromial-subdeltoid bursa or into the humeral head.
More often, the penetration of calcium (hydroxyapatite crystals) into the cortical bone occurs at the level of the greater tuberosity where there are signs of calcific tendinopathy of the supraspinatus. Cortical erosions and intraosseous migration of calcifications associated with calcific supraspinatus tendinopathy can enter into the differential diagnosis with tumors and infections.
This complication is responsible for intense pain and functional limitation.
Acknowledgment: Prof. Fabio Denicolò.
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