[Ganglion cyst at the spinoglenoid notch. A case report and literature review]. / Kyste du défilé spinoglénoïdien. A propos d'un cas et revue de la littérature.

INTRODUCTION: Entrapment of the suprascapular nerve at the spinoglenoid notch due to a ganglion cyst is an uncommon event and remains a challenge for clinicians. EXEGESIS: We describe the findings in a 35-year-old patient with nonspecific pain in the shoulder and in whom MR revealed a ganglion cyst in the spinoglenoid notch, confirmed surgically. CONCLUSION: Entrapment of the suprascapular nerve at the spinoglenoid notch due to a ganglion cyst must be considered in the differential diagnosis of nonspecific shoulder pain. MR imaging and electromyography can reach a positive, topographic, and etiologic diagnosis of suprascapular neuropathy.