<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A multisystem disease chiefly affecting males, characterized by necrotizing granulomatous vasculitis involving the upper and lower respiratory tracts, glomerulonephritis, and variable degrees of systemic, small vessel vasculitis, which is generally considered to represent an aberrant hypersensitivity reaction to an unknown antigen. (Dorland, 27th ed)</n0:def-definition><n0:def-source>MSH2003_2003_05_12</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A rare, autoimmune, systemic medium and small size vasculitis. It is characterized by the formation of necrotizing granulomas in the respiratory tract, necrotizing angiitis, and glomerulonephritis.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>