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General Reference

Ann IM 1998;129:114

Pathophys and Cause

Pathophys:Autoimmune

Epidemiology

M/F = 1:3. Associated with systemic vasculitis (10%), RA (7%), SLE (5%), Hashimoto’s (4%), other fibrosing syndromes (9%)

Signs and Symptoms

Sx:Onset age 13-84 yr, median age is 51 yr; arthritis (52%); ocular (51%); laryngotracheal sx (48%); saddle nose (29%); hearing loss (26%); vertigo (13%)

Si:Auricular chondritis (85%); nasal chondritis (54%); laryngotracheal sx (48%); fever (40%); skin changes (28%); episcleritis

Course

5-yr survival = 74%, 10-yr = 55%; fluctuating progressive course

Complications

Systemic vasculitis death (5%), pneumonia (5%), airway collapse (2%)

Lab and Xray

Lab:

Hem:ESR elevated (82%), anemia (55%)

Urine:Hematuria (26%), proteinuria (14%)

Treatment

Rx: Steroids, 60% respond (Nejm 1978;299:1203); possibly methotrexate, dapsone, cyclophosphamide, azathioprine