Sangeeta Deka, Deepjyoti Kalita, Udaykumar Sasi Rekha, Putul Mahanta, Diksha Rani, Ravi Shankar, Anusha Krishna Raj, Mithilesh Kumar Jha, Gaurav Badoni, Manisha Paul, Shailesh Kumar Gupta, Shailender Negi, Anshu Singh, Kuhu Chatterjee
BACKGROUND: Indirect immunofluorescence assay (IIFA) based on antineutrophil cytoplasmic antibody (ANCA) testing is a commonly employed test for diagnosing autoimmune vasculitis. Antinuclear antibody (ANA) can give rise to a false interpretation of perinuclear-ANCA (pANCA) in ethanol-fixed granulocyte substrates. Analytical interference could frequently occur in setups where ethanol-fixed substrates are used alone. Here, we intend to investigate this ANA interference in pANCA interpretation...
2022: Autoimmune Diseases