<unk>  is a well-defined<unk> ic lesion located along the peripheral margin of the meniscus, a part of the knee, nearly always associated with horizontal<unk>  tears.
Meniscal cyst
Osteochondroma
Retrocalcaneal bursitis
Osteochondrosis
Discoid meniscus
Olecranon bursitis
Synovial osteochondromatosis
Synovial chondromatosis