PT  - JOURNAL ARTICLE
AU  - Emma Poyser
AU  - Rhys Morris
AU  - Hemang Mehta
TI  - Primary synovial osteochondromatosis of the shoulder: a rare cause of shoulder pain
AID  - 10.1136/bcr-2018-227281
DP  - 2018 Nov 01
TA  - BMJ Case Reports
PG  - e227281
VI  - 11
IP  - 1
4099  - http://casereports.bmj.com/content/11/1/e227281.short
4100  - http://casereports.bmj.com/content/11/1/e227281.full
SO  - BMJ Case Reports2018 Nov 01; 11
AB  - Synovial osteochondromatosis is a benign neoplastic condition which manifests as multiple cartilaginous or osteocartilaginous nodules within a joint, bursa and tendon sheath. It typically results in pain and stiffness of the affected joint, and is thought to arise as a result of synovial membrane proliferation and metaplasia.1 We report the diagnosis and management of a 36-year-old man who presented with a long history of shoulder pain, which had been managed conservatively prior to referral to orthopaedics. Following investigation and subsequent diagnosis, he underwent successful surgical treatment of primary synovial osteochondromatosis, in the form of open synovial debridement and excision of nodules, with no recurrence demonstrated at 1-year follow-up. This case illustrates the diagnosis and management of primary synovial osteochondromatosis, and emphasises the importance of serial imaging and specialist referral for cases of diagnostic uncertainty or failure to respond to treatment as expected.