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MSH: Widespread necrotizing angiitis with granulomas. Pulmonary involvement is frequent. Asthma or other respiratory infection may precede evidence of vasculitis. Eosinophilia and lung involvement differentiate this disease from POLYARTERITIS NODOSA.,NCI: An autoimmune necrotizing vasculitis with the formation of granulomas. It is a pulmonary and systemic vasculitis associated with eosinophilia.
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