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Vasculitis - Langford.pdf - AInotes

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Urticarial <strong>Vasculitis</strong><br />

Hypocomplementemic Urticarial <strong>Vasculitis</strong> Syndrome (HUVS)<br />

Diagnostic criteria (Schwartz et al. Mayo Clin Proc 1982;57:231)<br />

Major criteria (both must be present)<br />

• Urticaria for more than 6 months<br />

• Hypocomplementemia<br />

Minor criteria (must have 2 or more)<br />

• Venulitis of the dermis (established via biopsy)<br />

• Arthralgia or arthritis<br />

• Mild glomerulonephritis<br />

• Uveitis or episcleritis<br />

• Recurrent abdominal pain<br />

• Positive C1q precipitin test with an associated suppressed C1q level

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