Presentation
Incidental finding.
Patient Data









Horizontal tear of the posterior horn of the medial meniscus with joint effusion and hypertrophy of the synovium in the suprapatellar pouch.
On a PD-weighted magnetic resonance imaging sagittal view: there's an injury of the tibial insertion of the anteromedial bundle of the anterior cruciate ligament.
Anomalous insertion of the anterior horn of the medial meniscus (AIMM).

On a PD-weighted magnetic resonance imaging sagittal view: injury of tibial insertion of anteromedial bundle of cruciate anterior ligament (yellow arrowheads).
Case Discussion
Early through to late-stage knee osteoarthritis has been linked with effusion-synovitis and synovial hypertrophy, especially when seen in the suprapatellar pouch.