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Findings that shed new light on the possible pathogenesis of a disease or an adverse effect
CASE REPORT
Primary synovial osteochondromatosis of the shoulder: a rare cause of shoulder pain
  1. Emma Poyser1,
  2. Rhys Morris2 and
  3. Hemang Mehta3
  1. 1 Orthopaedic Department, Nevill Hall Hospital, Abergavenny, UK
  2. 2 Wales Orthopaedic Deanery, Cardiff University, Cardiff, UK
  3. 3 Orthopaedic Department, Nevill Hall Hospital, Abergavenny, UK
  1. Correspondence to Miss Emma Poyser, emma.poyser{at}wales.nhs.uk

Abstract

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.

  • orthopaedics
  • musculoskeletal syndromes

https://doi.org/10.1136/bcr-2018-227281

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    Footnotes

    • Contributors EP acquired the clinical data, obtained and prepared relevant images, made a substantial contribution to drafting and editing the manuscript and submitted the case report for review. RM made a substantial contribution to editing and revising the manuscript, and approved the final case report prior to submission. HM made a substantial contribution to conception of the study and editing of the manuscript, and approved the final case report prior to submission.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Competing interests None declared.

    • Patient consent Obtained.

    • Provenance and peer review Not commissioned; externally peer reviewed.