Meniscal tear with synovial hyperplasia

Case contributed by Dr Domenico Nicoletti

Presentation

Incidental finding.

Patient Data

Age: 50
Gender: Male

Horizontal tear of the posterior horn of the lateral meniscus with joint effusion and hypertrophy of the synovium in the suprapatellar pouch.

On a PD-weighted magnetic resonance imaging sagittal view, the anteromedial meniscofemoral ligament is seen as a linear low signal intensity structure arising from the free edge of the anterior horn of the medial meniscus, coursing superiorly along the anterior aspect of the anterior cruciate ligament, and attaching at the intercondylar notch.

Annotated image

On a PD-weighted magnetic resonance imaging sagittal view, the anteromedial meniscofemoral ligament (AMMFL: yellow arrowheads) was seen as a linear low signal intensity structure arising from the free edge of the anterior horn of the medial meniscus, coursing superiorly along the anterior aspect of the anterior cruciate ligament, and attaching at the intercondylar notch

Case Discussion

Early through to late-stage knee osteoarthritis has been linked with effusion-synovitis and the synovial hypertrophy, especially when seen in the suprapatellar pouch.

The AMMFL is observed as a low-signal intensity band-like structure on MRI and is best seen on the sagittal view.

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Case information

rID: 65771
Published: 22nd Jan 2019
Last edited: 1st Feb 2019
Inclusion in quiz mode: Included

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