Shoulder – Capsular effusion

CASE HISTORY

Shoulder pain injured while swinging the arm. 

TECHNICAL FACTORS

Long- and short-axis fat- and water-weighted images were performed. 

KEY IMAGES

This case has no key images.

CASE FINDINGS

• Rotator Cuff:
  • No evidence of tear partial or full-thickness. 
• AC Joint:
  • Mildly inflamed but no arthropathic. Small amount of capsular fluid. 
• Arches:
  • Scant bursal fluid in the subacromial arch. 
• Medial Arch:
  • Unremarkable. 
• Coracoid Arch:
  • Unremarkable. 
• Articular:
  • Capsular fluid increased although still mild. 
  • Posterior synechiae. 
• Articular/Glenoid:
  • Equivocal or subtended pattern of edema in the posterosuperior humeral head without deformity is associated with a partial rim tear as either glenoid articulation rim divot and/or glenolabral articular disruption so called partial undersurface rim tear. No labral displacement identified. 
  • Superior and inferior labra are unremarkable. Other differential diagnosis for a partial tear would be a Perthes-type lesion. 
• Superior Glenohumeral Ligament:
  • Normal. 
• Middle Glenohumeral Ligament:
  • Suspect insertional sprain. 
• Inferior Glenohumeral Ligament:
  • Normal. 
• Coracoclavicular Ligaments:
  • Normal. 
• Rotator Intervals:
  • Normal. 
• Muscles:
  • Normal. 
• Nonvascular Bundle:
  • Normal. 

CASE CONCLUSION

Extremely subtle pattern of capsular effusion/fluid partial nondisplaced labral injury as either a combination of GLAD and/or GARD lesion versus Perthes lesion. Please see the body of the report for additional pertinent negative findings on the accompanying and closed montage.