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Loose body
1%
5/776
Discoid lateral meniscus
87%
675/776
Transverse meniscal ligament
10/776
Displaced lateral meniscus tear
8%
64/776
Displaced medial meniscus tear
2%
16/776
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The arthroscopic view and the coronal MRI scan show a discoid lateral meniscus covering almost the entire lateral tibial plateau. The sagittal views show a contiguous meniscus or "bow tie" sign on three consecutive images, pathognomonic for a discoid meniscus. Lateral discoid menisci are much more common than medial. There is no evidence of abnormal signal to indicate meniscal tearing. A transverse meniscal ligament is best seen anterior to the anterior horn of the lateral meniscus on multiple views. There is no evidence of a loose body on the arthroscopic or MRI images.
3.7
(9)
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