Q1. Which of the following is not a typical histopathological feature of IgG4 related disease?
- (1) Ratio of IgG4/IgG cells more than 40%
- (2) Obliterative phlebitis and storiform fibrosis
- (3) Eosinophilic infiltration
- (4) Neutrophilic infiltrates
- (5) Question not attempted