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Fig. 2A —A tear of medial meniscus not reported on MRI, but described as "tear" of posterior one half of meniscus at arthroscopy. Sagittal proton density fast spin-echo image (TR/TE, 3,600/16; echo-train length, 6; 2-mm slice thickness; 0.2-mm gap; matrix, 416 x 256; auto-zero-fill interpolation [ZIP], 512; number of excitations [NEX], 2; 15-cm field of view) showing fraying of free edge of posterior horn of medial meniscus (arrow), which was called tear at surgery, but not on MRI interpretation.