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✅ Knee MRI Mastery/Chap 4BCD. Anterior knee

(Fig 4-D.11) Intramuscular Extension of Baker's Cyst

by MSK MRI 2024. 6. 25.

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📌 Intramuscular Extension of Baker's Cyst

 

  • A Baker’s cyst normally enlarges in the direction of least resistance, most commonly along the medial gastrocnemius muscle belly distally.
  • If a focal fascial defect occurs, or at a pre-existing weak region, the Baker’s cyst can enter the muscle compartment.

 

Dissecting Baker’s Cyst Presentation

  • A dissecting Baker’s cyst may present with tender fullness at the posteromedial aspect of the knee just below the joint. 
  • These lesions represent rare instances where a Baker’s cyst enters through the muscle fascia and is often outside and within a muscle compartment.

 

Reference

  1. MRI Web Clinic — September 2013 Proximal Gastrocnemius Tendon Pathology

 

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