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. 2021 Oct 2;22:328. doi: 10.1186/s12882-021-02527-3

Table 2.

Histological stages of BKPyVAN and Banff score of tubular and interstitial lesions

Cases Histological stages Banff score
Inflammation
(i)
Tubulitis
(t)
Tubular atrophy
(ct)
Interstitial fibrosis
(ci)
1 B1 i1 t2 ct1 ci1
2 A i1 t1 ct1 ci1
3 B3 i3 t2 ct2 ci2
4 B1 i1 t3 ct1 ci1
5 B1 i1 t2 ct2 ci2
6 B3 i3 t3 ct1 ci1
7 C i1 t1 ct3 ci3
8 B2 i2 t2 ct2 ci2
9 A i1 t1 ct1 ci1
10 B2 i2 t1 ct2 ci1

BKPyVAN BK polyomavirus associated allograft nephropathy