MR imaging of meniscal malformations of the knee mimicking displaced bucket-handle tear.

Fujikawa, Akira; Amma, Hisayoshi; Ukegawa, Yoh; Tamura, Taiji; Naoi, Yutaka · Skeletal Radiol · 2002

case_report · Level V

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Abstract

We report two cases of patients with lateral meniscal malformations of the knee that were found incidentally. Magnetic resonance imaging (MRI) of both cases showed a fragment-like meniscus structure located in the intercondylar notch, very similar to the "fragment in the intercondylar notch sign" observed in displaced bucket-handle tear. Arthroscopic examinations revealed a ring-shaped lateral meniscus in one case, and "flipped-over" lateral meniscus in the other. In the latter, a similar lateral meniscal malformation was observed contralaterally at MR arthrography.

Medical subject headings

Anatomy