Immunoglobulin G4-related disease in the sigmoid colon in patient with severe colonic fibrosis and obstruction: A case report

Table 2 Immunoglobulin G related indexes detection

Test items	Results	Reference interval
IgG	19.2	7.51-15.6
IgA	3.23	0.82-4.53
IgM	0.64	0.46-3.04
Complement 3	0.89	0.65-1.39
Complement 4	0.24	0.16-0.38
IgG1	10.20	4.05-10.11
IgG2	8.26	1.69-7.86
IgG3	0.368	0.11-0.85
IgG4	1.890	0.03-2.01 for IgG4-RD, cutoff value > 1.35

IgG4-RD: Immunoglobulin G4-related disease.