<prompt> Wegeners granulomatosis is diagnosed by:P-ANCAc-ANCAm-ANCAA.N.A  <response>: Ans. b c-ANCARef.:Harrison 18th edition, Chapter 326: c- ANCA Wegener granulomatosisGranulomatosis with angitis p-ANCA Microscopic polyangitis Primary sclerosing cholangitis Churg strauss syndromeThe terminology of cytoplasmic ANCA cANCA refers to the diffuse, granular cytoplasmic staining pattern observed by immunofluorescence microscopy when serum antibodies bind to indicator neutrophils. Proteinase-3, a 29-kDa neutral serine proteinase present in neutrophil azurophilic granules, is the major cANCA antigen. 