<unk>  is a locally aggressive bone tumor of the cartilaginous type. It consists of several hyaline cartilaginous nodules and has the potential of becoming cancerous.
Synovial chondromatosis
Synovial osteochondromatosis
Osteochondroma
Tenosynovial giant cell tumor
Meniscal cyst
Myositis ossificans
Osteochondritis dissecans
Osteochondrosis