Fig. 3From: A characteristic MRI finding to diagnose a partial tear of the medial meniscus posterior root: an ocarina signAn “accurate” partial stable tear (type A) of the MM posterior root (64-year-old woman). A A posterior root irregularity (dashed area, PD-weighted coronal view). Bone marrow spots (yellow circle). B An ocarina sign (T2* sagittal view). C, D Arthroscopic findings from the anterolateral portal. A structural cleavage with root width > 1/2 (arrowhead)Back to article page