| Summary: | To accurately interpret knee MRI, it is important not only to know the basic meniscal anatomy
but also to distinguish it from that under pathological conditions. Thus, it would be helpful to
know the normal meniscus variants (false positives) that could be mistaken for meniscal tears,
and tears that could easily be missed and incorrectly diagnosed as normal (false negatives).
False positives include synovial recesses, meniscal flounce, the relationship between the popliteus
tendon and lateral meniscus, transverse ligament, the anterior root of the meniscus, and
meniscofemoral ligament. False negatives include focal radial tears, flap tears, posterior root
tears, meniscocapsular separation, and discoid meniscal tears. In this pictorial essay, we reviewed
the imaging data obtained in the aforementioned cases.
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