Persistent Lymphadenopathy due to IgG4-Related Disease

Table 3

Specificity and sensitivity of IgG4+/IgG+ cell ratio for diagnosis of IgG4-RD^*.

IgG4+/IgG+ Cell ratio	Sensitivity	Specificity
>30%	100%	71.4%
>40%	94.4%	85.7%
>50%	94.4%	95.2%

^*Adapted from Masaki et al. [4].