Discoid meniscus with tear
pain in right knee joint.
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There is increased width of body of lateral meniscus, which is seen on more than 3 contigenous saggital images, represent near complete discoid meniscus. Linear intrasubstance hyperintense signal is seen in lateral meniscus on gradient and PD fat sat images, which reaches upto its anterior margin – represents its horizontal tear.
Small fairly well defined lobulated hyperintense area is seen adjacent to the anterior horn of lateral meniscus on T2W and PD fat sat images – probably represent parameniscal cyst rather than part of joint effusion. There is minimal synovial joint effusion.
These findings represent discoid meniscus with tear.
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- 2. Bennani-smirès C, Benjelloun A, Dadi-benmoussa F et-al. [Magnetic resonance imaging and the discoid meniscus in children]. J Radiol. 1998;79 (9): 861-4. J Radiol (link) - Pubmed citation