CD79A and staphylococcal infection: A number of reports have presented cases of atypical acute postinfectious glomerulonephritis, particularly following staphylococcal infection, shown by immunofluorescence IgA-dominant glomerular staining, endocapillary proliferative pattern, diffuse mesangioproliferative or even focal proliferative histomorphological patterns, and occasionally the absence of hump-shaped deposits (13,14).