Musculoskeletal case 1: Presentation / Musculoskeletal case 1: Diagnosis: Lateral discoid meniscus

A 46-year-old woman presented with lateral joint-line discomfort and underwent magnetic resonance imaging. Coronal gradient echo images (Fig. 1) and Tl-weighted sagittal images (Fig. 2) were obtained. What diagnosis would you make?

For the answer, see page 466.

[Author Affiliation]

Section Editor: Peter L. Munk, MD

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