Table 2.
Pathological observations in patients with polycythemia vera associated with IgA nephropathy.
| Patient | Light microscopy | Immunoflurescent study | Electron microscopy | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of glomeruli | % of globally sclerotic glomeruli | % of segmentally sclerotic glomeruli | No. of crescents | Mesangial proliferation | Tubolo interstitial lesion | Vessel lesion | IgA | IgM | IgG | C3 | Electron-dense material | |
| 1 | 32 | 3.1 | 0 | 0 | No | Mild | No | ++ | − | − | ++ | Yes |
| 2 | 15 | 40 | 33.3 | 1 | Moderate/Severe | Moderate | Yes | ++ | + | ++ | ++ | Yes |
| 3 | 26 | 38.4 | 7.6 | 0 | Mild | Moderate | Yes | ++ | + | − | − | Yes |
| 4 | 20 | 5 | 0 | 0 | Mild | Mild | Yes | ++ | − | − | + | Yes |
| 5 | ND | ND | Yes | 0 | Mild | Moderate | Yes | +++ | − | − | + | ND |
| 6 | ND | ND | Yes | 0 | Moderate | Moderate | No | ++ | +- | − | + | Yes |
| 7 | ND | ND | No | 0 | Mild | Mild | No | +++ | − | − | ++ | ND |
ND = not presented/not done.