(Fig 1-C.13) Parameniscal cyst versus ganglion cysts

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★ Ganglia vs. Parameniscal Cysts ★

1️⃣ Parameniscal Cyst

•  Can appear similar to a ganglion but is usually smaller.
• Typically associated with an underlying meniscal tear.
• Diagnosis confirmed by showing a connection with an adjacent meniscal tear on MRI, regardless of the pulse sequence used.

 

2️⃣ Infrapatellar Ganglion

✅ Characteristics

• Well-marginated masses located at the anterior knee.
• Filled with gelatinous material and lack a synovial lining.
• Most commonly found in the Hoffa fat pad, adjacent to the anterior horn of the lateral meniscus.

 

✅ Clinical Presentation

• The mass may be large, expanding the fat pad.
• Symptoms may include intra-articular impingement or limited motion.

 

✅ MRI Appearance

• Appears as a well-defined, homogeneous, non-enhancing fluid-filled collection.
• Rupture or leakage can cause ill-defined adjacent edema.

 

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