Ectopic Germinal Centers and IgG4-Producing Plasmacytes Observed in Synovia of HLA-B27+ Ankylosing Spondylitis Patients with Advanced Hip Involvement

Table 2

Histochemical assessment.

Data	Fibrosis	CD3	CD20	CD21	CD38	IgG	IgG4	IgM	IgA
1	2	49.2	44	0	4.2	1.3	0	0	1
2	2	81.8	46.4	0	10	6	0	1	1.3
3	3	5.2	6.2	0	9.6	6	0	1	1
4	2	51.4	25.8	0	2	0	0	0	0
5	2	343	510	79	208	143	99	60	15
6	2	503	510	224	217	187	11	10	12
7	3	3	2.7	0	0	0	0	0	0