Table 2: Histologic features of IgG4-related tubulointerstitial nephritis.

IgG4 IHCGlomerularIF TBMIF TBMIF TBMIF GLIF GLIF GLIF GLEM TBMEM GL
Pt. no.Age/gender(cells per hpf)IgG4/IgGLesionIgGC3C1qIgGIgAC3C1q

176/F5081% +
270/M1938%NANANANANANANA +
359/M5754%NA
463/M3746% + +
558/M2181%NANANANANA
658/M15677%
775/M2518%NANANANA +
868/M1740% + +
975/M2864% + +
1055/M4955%
1169/M3051% + +
1280/M1090%MPGNNANANA + NA +
1368/M2838%IgA GN + NANA
1479/M4241%EC + + +
1569/M7357%EC +
1672/M5158%HSPNNANANA + NA +
1775/F6240%HSPN + +
1883/M2543%MGN + + + + + +
1960/M6842%MGN +
2078/M2845%MGN + +

Abbreviations: EC: endocapillary hypercellularity; EM: electron microscopy; GL: glomeruli; hpf: high-power field; HSPN: Henoch-Schönlein purpura nephritis; IF: immunofluorescence; IgA GN: IgA nephropathy; IHC: immunohistochemistry; MGN: membranous glomerulonephritis; MPGN: membranoproliferative glomerulonephritis; NA: not available; Pt.: patient; TBM: tubular basement membranes.