Imaging of the peripheral nerve entrapment syndromes of the shoulder

Paraglenoid cysts may compress the distal branches of the suprascapular nerve or compress the axillary nerve in the quadrilateral space inferoposterior to the glenohumeral joint. This nerve compression is important to recognize before it cause shoulder weakness through denervation of external rotator muscles.Original Abstract: Les kystes paraglenoiediens peuvent comprimer le nerf suprascapulaire ou comprimer le nerf axillaire au niveau de l'espace quadrilatere. Cette cause de compression nerveuse est importante a connaitre car elle peut etre a l'origine d'une atrophie des muscles rotateurs externes de la coiffe.