Presentation
Pain and functional limitation.
Patient Data
In the axillary recess, there is a lipomatous formation, moderately hyperintense on T1 and T2 sequences with signal cancelation at fat saturated sequences.
Humeral glenohumeral concentric osteoarthritis with bone marrow edema extended from the head to the humeral surgical neck and the scapular glenoid.
There is joint effusion with intra-articular loose bodies.
Tendons with degenerative aspects, free of lesions.
Case Discussion
Of unknown etiology, It is one of the rarest forms of developing neoplasm by synovial. The synovial cells are gradually replaced "villous" rich in mature fat cells.