<unk>  can be diagnosed by magnetic resonance imaging (MRI), by biopsy, or during surgery. The disorder is difficult to identify and is often not diagnosed for years due to nonspecific symptoms or a general paucity of symptoms.<unk>  cases are often misdiagnosed as osteoarthritis, localized trauma, sports injuries, xanthomas, or other conditions. One study of 122 diffuse<unk>  patients found that the average delay in diagnosis was 2.9 years.
Tenosynovial giant cell tumor
Synovial osteochondromatosis
Synovial chondromatosis
Osteochondroma
Meniscal cyst
Synovial sarcoma
Myositis ossificans
Osteochondritis dissecans