The primary small-vessel systemic vasculitides are disorders that target small blood vessels, inducing vessel wall inflammation, and are associated with the development of anti-neutrophil cytoplasmic antibodies. Multiple organs are attacked, including the lungs and kidneys. Increasing knowledge of pathogenesis suggests that the antibodies activate neutrophils inappropriately, leading to endothe...

Churg-Strauss syndrome (CSS) is an eosinophil-associated, small vessel granulomatous vaculitis, characterized by late onset asthma, upper airways disease, eosinophilia, and clinical manifestations of systemic vasculitis. [1,11-13] Diagnosis is mainly clinical with findings of asthma, eosinophilia, rhino sinusitis and signs of vasculitis in major organs. So far to the best of our knowledge repor...