Best Practice Case Studies-Shoulder Labrum Tear With Paralabral Cyst

Shoulder Labrum Tear With Paralabral Cyst

Video Transcription

Video Summary

Barry Bellosis, a musculoskeletal radiology fellow at Stanford, discusses assessing labral tears and paralabral cysts via MRI without contrast. A normal labrum appears dark on all sequences, while a torn labrum shows increased signal intensity. An example includes a 26-year-old football player with a paralabral cyst extending to the spinoglenoid notch, causing increased signal in the infraspinatus muscle and indicating denervation change. If the suprascapular nerve is impinged at the suprascapular notch, both supraspinatus and infraspinatus muscles are affected, while impingement at the spinoglenoid notch affects only the infraspinatus.

Meta Tag

Edition 2nd Edition

Related Case 2nd Edition, CASE 48

Topic Shoulder

Keywords

2nd Edition, CASE 48

2nd Edition

Shoulder

labral tears

paralabral cysts

MRI

suprascapular nerve

infraspinatus muscle