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Bilateral discoid mensicus

Case contributed by Bahman Rasuli
Diagnosis certain

Presentation

Clicking sound and locking both knees.

Patient Data

Age: 20 years
Gender: Male

Right knee

mri

The lateral meniscus has an abnormally wide body which is seen in more than 3 sagittal images.

Left knee

mri

The lateral meniscus has an abnormally wide body which is seen in more than 3 sagittal images.

Case Discussion

Discoid menisci are those that have a body that is too wide, usually affecting the lateral meniscus. They are incidentally found in 3-5% of knee MRI examinations. 

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