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Gout masquerading as rheumatoid vasculitis

A Sharma1, B A Baethge, E B Smith

  • 1Department of Internal Medicine, University of Texas Medical Branch at Galveston 77555-0767.

The Journal of Rheumatology
|February 1, 1994
PubMed
Summary
This summary is machine-generated.

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A rare case of gout in a young woman presented with leg ulcers and joint pain, mimicking other inflammatory conditions. Diagnosis was confirmed by identifying uric acid crystals, highlighting an unusual presentation of urate arthropathy.

Area of Science:

  • Rheumatology
  • Crystal-induced Arthropathies

Background:

  • Gout is a common form of inflammatory arthritis characterized by deposition of monosodium urate crystals.
  • It typically affects middle-aged men and postmenopausal women, often associated with metabolic syndrome.

Observation:

  • A 30-year-old Mexican woman presented with a distinct clinical picture of rash, severe lower extremity ulcerations, and polyarthritis.
  • Her symptoms mimicked rheumatoid vasculitis, but serum rheumatoid factor was negative.

Findings:

  • Diagnosis of gout was definitively established through identification of uric acid crystals in synovial fluid and skin biopsies.
  • X-ray crystallography further confirmed the presence of urate crystals.
  • The patient's young age, female sex, and lack of typical metabolic defects were atypical for gout.

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Implications:

  • This case underscores the importance of considering gout in patients with unusual presentations, even in the absence of typical risk factors.
  • Further research is warranted to understand the unique pathophysiology and potential genetic predispositions in such atypical urate arthropathy cases.
  • Highlights the diagnostic challenges and the need for comprehensive evaluation in complex rheumatological cases.