© 2004 Fellowship of Postgraduate Medicine
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Painful knee
| The first 150 words of the full text of this article appear below. |
The T2-weighted coronal image shows a well defined oval shaped, homogenous, multiseptated high signal intensity lesion adjacent to the lateral margin of the lateral meniscus. The lesion is lying deep to the iliotibial tract.
The differential diagnoses include lateral meniscus cyst, pes anserinus bursitis, bursitis of the lateral collateral ligament, and lateral meniscus injury.
The fluid filled multiseptated cystic lesion-like appearance on the MRI is consistent with a left anterolateral multiseptated parameniscal cyst arising from the lateral meniscus. T1-weighted images confirmed the same.
Lateral meniscus cysts are usually associated with horizontal cleavage tears of the meniscus.
Asymptomatic meniscal cyst can be treated non-operatively. Symptomatic cysts need partial menisectomy along with decompression of the cyst either arthroscopically or by an open method.
This young woman was suspected of having a meniscal cyst and hence had the MRI investigation. The T2-weighted coronal images (shown in fig 1; see p 556) clearly
Relevant Article
- Painful knee
- K Selvarajan, R Vadivelu, and T P Green
Postgrad. Med. J. 2004 80: 556.[Extract] [Full Text] [PDF]
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