[Julian]

Thats an interesting MRI report. The term pannus is more commonly used with rheumatoid arthritis which I assume you dont have. The MRI often overcalls changes at the AC joint. Asymptomatic changes are common in this joint. Often it thickens and can press on supraspinatus (the top of the rotator cuff). It responds well to a file surgically!

Your report is encouraging as your cuff is intact and the lack of fluid around biceps is encouraging.

If 0 degrees is with your arm hanging at your side and 180 with your arm pointing straight up then

- pain 160 - 180 is likely from the ACJ and will respond to corticosteroid in the joint or excision of the distal end of clavicle surgically (assuming exercises etc fail)

- pain from 80 - 120 is likely due to the tendinitis so first rest, strengthen rest of cuff (subscap , teres minor, infraspinatus). If that fails subacromial corticosteroid then next option acromioplasty (thinning bone) - its at this stage one would co-plane the ACJ

Hopes this helps

Julian