<prompt> A 40yr old male presenting with URTI, hemoptysis and has elevated cANCA value is most likely havingChurg strauss syndromeWegners granulomatosisMicroscopic polyangitisGood Pasteurs syndrome  <response>: Ans: b Wegners granulomatosis Wegners granulomatosis is a necrotizing vasculitis characterized by:i Acute necrotizing granuloma of URTLRTii Necrotizing vasculitis involving small to medium vesselsiii Renal disease - focal necrotizing crescentic glomerulitiscANCA is positive in 95 of all patients with acute generalized disease. Arise in titre suggest relapse.cANCA typically found in Wegners granulomatosispANCAMicroscopic polyangitisChurg strauss syndromeGood pasteurs syndromeIdiopathic crescentic glomerulonephritis 