Anterior cruciate ligament mucoid degeneration

Case contributed by Nick Tarasov
Diagnosis almost certain

Presentation

Anterior knee pain

Patient Data

Age: 60 years
Gender: Female

ACL has a heterogeneous signal, demonstrating a celery stalk sign.

Note the discoid lateral meniscus.

Degenerative changes of the medial meniscus.

Moderate osteoarthritis of the patellofemoral joint with a small joint effusion.

There is a small Baker cyst.

Case Discussion

There is a good case with the classic signs of ACL mucoid degeneration. It should not be misdiagnosed as a rupture since the fibers are not torn.

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