Prevalence of histological features resembling autoimmune pancreatitis in neoplastic pancreas resections

Aims Types 1 and 2 autoimmune pancreatitis (AIP) can mimic pancreatic neoplasia. Due to the small quantity of tissue in mass‐targeted pancreas biopsies, inflammatory features may raise the differential of AIP. However, the frequency of AIP‐like histology in neoplastic pancreas is not well characterised. Therefore, the specificity of inflammatory lesions on biopsy with respect to the diagnosis of AIP is uncertain. Methods and results Neoplastic...