CD79A and IgA glomerulonephritis: An extensive search in PubMed, Google, Google Scholar, Scopus, and EMBASE was conducted using different texts, keywords, and phrases such as Berger’s disease, the pathogenesis of IgA nephropathy, the clinical presentation of IgA nephropathy, new updates in IgA nephropathy therapy, IgA histology, and hemoptysis with hematuria.