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Sonographic appearances of meniscal cysts
Journal of Clinical Ultrasound : JCU
|February 25, 1998
Summary
High-resolution ultrasound can identify tibial meniscal cysts, which often appear diverse on sonograms. Continuity with the meniscus is key for diagnosis, not echotexture, to avoid misdiagnosis and unnecessary surgery.
Area of Science:
- Musculoskeletal imaging
- Diagnostic ultrasound
- Orthopedic radiology
Background:
- Meniscal cysts can present with varied sonographic appearances.
- Accurate diagnosis is crucial to prevent misidentification as other soft-tissue lesions.
Purpose of the Study:
- To characterize the sonographic features of tibial meniscal cysts.
- To correlate ultrasound findings with magnetic resonance imaging (MRI) for improved diagnostic accuracy.
Main Methods:
- Retrospective analysis of 13 confirmed meniscal cysts.
- High-resolution sonography was performed on all cases.
- Correlation of sonographic findings with pre-existing MRI results.
Main Results:
- Cysts were located both laterally (7) and medially (6) to the joint line.
- Sonographic echotexture varied significantly, from hypoechoic to heterogeneously hyperechoic.
- All cysts demonstrated continuity with the meniscus, often associated with a meniscal tear.
Conclusions:
- Sonographic appearance of meniscal cysts is diverse and can mimic other pathologies.
- Echotexture alone is not a reliable diagnostic feature.
- The primary diagnostic sonographic characteristic is the cyst's continuity with the meniscus.