Suprascapular and spinoglenoid large paralabral notch cyst with suprascapular neuropathy
Presentation
After lifting a heavy object the patient complained about pain and weakness in the left shoulder with decreased range of motion.
Patient Data
Left shoulder
Posterior labral tear (SLAP type 2) with multiloculated paralabral cyst that lying at the suprascapular and spinoglenoid notch extending to the groove inferior to the notch with slightly high signal intensity of the infraspinatus muscle as by denervation, with loss volume. Normal the supraspinatus muscle. Area of altered signal intensity is visible in the anterior of the supraspinatus tendon in the region of the critical zone and insertion, as by tendinosis.
Case Discussion
The suprascapular nerve supplies the supraspinatus and infraspinatus muscles. The main branch runs in the suprascapular notch and divides into two branches, one supplies supraspinatus and the second exits via the spinoglenoid notch and runs in the groove inferior to the notch and supplies infraspinatus.
Suprascapular neuropathy is compression of the suprascapular nerve that most commonly occurs at the suprascapular notch or spinoglenoid notch by a mass. Compression at the suprascapular notch causes shoulder dysfunction, pain, atrophy of both the supraspinatus and infraspinatus muscles and isolated external rotation weakness. Treatment will involve repair of the labral tear and drainage of the cyst.
Radiographer: TSRM Fabio Imola
Unable to process the form. Check for errors and try again.