Discoid Lateral Meniscus with Tear


Another classic: discoid meniscus with associated tears.  I often see normal (not torn) incomplete discoid menisci.  Full/True discoid menisci are more rare but more often have a tear associated with them.  This knee also had the courtesy to give rise to parameniscal cysts from the meniscal tear.

The most obvious tear is the radial component but there is almost certainly a horizontal component of the tear producing the parameniscal cysts and this patient will probably end up with a small remnant of the meniscal body and posterior horn following arthroscopic debridement.


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