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Table 2
The results of immunohistochemistry examination in group A and group B
	Positive part	IgG	IgM	IgA	C3c	C3d	C1q
Group A (n = 40)	capillary lumens	0.95 ± 1.11 (52.5%)	0	0	0.03 ± 0.16 (3.33%)	3.00 ± 0.00 (100%)^a	0
Group B (n = 34)	capillary lumens	2.94 ± 0.24 (100%)^b	0	0	0.29 ± 0.58(23.5%)^b	3.00 ± 0.00 (100%)	0

Group A: patients treated with corticosteroid before biopsy.

Group B: patients treated without corticosteroid before biopsy.

^aP <0.01 versus IgG and C3c in the same group; ^bP <0.01 versus group A.

Zhang et al. Diagnostic Pathology 2012 7:109 doi:10.1186/1746-1596-7-109

Table 2