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Pachydermodactyly presenting as juvenile idiopathic arthritis in an adolescent man
  1. Ameen Jubber,
  2. Dushyanth Gnanappiragasam,
  3. Maumer Durrani,
  4. Alison Kinder and
  5. Karen E Harman
  1. University Hospitals of Leicester NHS Trust, Leicester, UK
  1. Correspondence to Dr Dushyanth Gnanappiragasam; d.gnanappiragasam{at}


We present the case of a 17-year-old Asian man diagnosed with pachydermodactyly, a rare digital fibromatosis. Although this is a non-inflammatory periarticular soft tissue disorder, the clinical appearance can mimic inflammatory arthritis. The patient had a 2-year history of fusiform swelling of multiple proximal interphalangeal joints. He was initially diagnosed with juvenile idiopathic arthritis and treated with methotrexate, but a lack of clinical response led to the diagnosis of pachydermodactyly. Recognising this rare condition can prevent unnecessary and potentially harmful treatment.

  • dermatology
  • skin
  • radiology
  • drugs: musculoskeletal and joint diseases

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  • Contributors AJ, DG, MD, AK and KEH were involved in the planning, designing, drafting, revising and final approval of the article.

  • 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 for publication Obtained.

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