Massive Synovial Osteochondriomatosis of The Shoulder: A Case Report and Review of The Literature

Synovial chondromatosis is a generally monoarticular disorder characterized by multiple benign nodular cartilaginous formations, arising as a result of metaplasia of synovial tissue. Other names by which this entity is known are synovial osteochondromatosis, primary synovial chondromatosis, synovial chondrometaplasia. The most frequent location is the knee, hip, shoulder, shoulder, elbow, wrist and temporomandibular joint. It can be primary or secondary to a pre-existing chondromatosis. 1-8 It is an uncommon entity with a worldwide incidence of 1:100,000 with greater involvement of males up to 3 times higher. It usually affects people between 30 and 50 years of age, and although its etiology is unknown, it has been associated with chromosomal effects. In studies published between 1996 and 2002, structural alterations were found, which showed a rearrangement of bands 1p13-p22. 1, 2, 3, 9, 10, 11