Abdominal manifestations of IgG4-related disease

In the last decade, autoimmune pancreatitis has become recognised as part of a wider spectrum of IgG4-related disease, typically associated with elevated serum IgG4 levels and demonstrating a response to corticosteroid therapy. Radiologically, there is imaging overlap with other benign and neoplastic conditions. This pictorial review discusses the intra-abdominal manifestations of this disease on cross-sectional imaging before and after steroid treatment and the main radiological features which help to distinguish it from other key differentials.

Article: Abdominal manifestations of IgG4-related disease: a pictorial review

Authors: Christopher Siew Wai Tang, Nishanth Sivarasan and Nyree Griffin