Presentation
Medial knee pain.
Patient Data
Undisplaced in the margin radial tear of the body/posterior horn junction medial meniscus. Lateral meniscus is intact. No parameniscal cyst or meniscal extrusion. Anterior and posterior cruciate ligaments are intact. Medial and lateral collateral ligaments are intact. Posterolateral corner structures appear uninjured. Distal semimembranosus tendinosis with thickening and hyperintensity, partial disruption of fibers with an additional proximally-extending interstitial split tear. The adjacent semimembranosus-tibial collateral ligament bursa is distended with fluid.
Case Discussion
The posteromedial corner has been called the "neglected corner" of the knee as it is often overlooked. Here, there is obvious semimembranosus tendinosis with a partial tear and an effusion of the semimembranosus-tibial collateral ligament bursa as a cause for the patient's pain.
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