Suprascapular axonotmesis and rheumatoid disease: report of a case treated conservatively.

Axonotmesis of the suprascapular nerve mimics rupture of the musculotendinous cuff of the shoulder. Arthrography of the shoulder joint and electromyographic studies of the shoulder muscles are essential in arriving at the proper diagnosis. Axonotmesis of the suprascapular nerve should be suspected in the patient who presents with signs of ruptured musculotendinous cuff and who has a normal arthrogram.