Thoracic Paravertebral Mass as an Infrequent Manifestation of IgG4-Related Disease

Table 1

Baseline autoimmune workup.

ANA	1 : 640
c-ANCA	<1 : 20
p-ANCA	<1 : 20
Rheumatoid factor (IU/mL)	<15
Smith antibody (units)	3
RNP antibody (units)	4
SSA/Ro antibody (units)	10
SSB/La antibody (units)	4
C3 (mg/dL)	40
C4 (mg/dL)	6
Sedimentation rate (mm/Hr)	72