Table 3. Results of immunofluorescence staining from 44 patients with glomerular BKPyV involvement.
IF staining findings | N (%) |
---|---|
Glomerular mesangial area and capillary loops | |
IgA | 3 (6.8) |
IgM | 11 (25.0) |
IgG | 2 (4.5) |
C3 | 2 (4.5) |
C1q | 6 (13.6) |
Fibrinogen | 3 (6.8) |
C4d deposition | |
Along GBM | 6 (13.6) |
Along TBM | 18 (40.9) |
Along ptc | 0 |
BKPyV, BK polyomavirus; IF, immunofluorescence; GBM, glomerular basement membranes; TBM, tubular basement membranes; ptc, peri-tubular capillaries.