Presentation
4 months history of painful right shoulder with restricted range of motion.
Patient Data
hyperintensity on PD fat sat with thickening and enhancement of the inferior glenohumeral ligament
obliteration of the fat triangle between the coracohumeral ligament superiorly, coracoid process /coracobrachialis anterosuperiorly and glenohumeral joint capsule posteroinferiorly "subcoracoid triangle sign", well-demonstrated on sagittal sequences
thickening with enhancement of the joint capsule
soft tissue thickening within the rotator interval
thickening with enhancement of the subacromial bursa with mild effusion
thickening of the coracohumeral ligament with supraspinatus tendinopathy
Annotated image: the yellow arrow indicates the subcoracoid triangle sign.
Case Discussion
The clinical presentation and the MRI features are most consistent with adhesive capsulitis (frozen shoulder).
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