LYMPHOPLASMACYTIC SCLEROSING PANCREATITIS (LPSP) AND IDIOPATHIC DUCT CENTRIC PANCREATIS (IDCP) ARE DISTINCT CLINICAL FORMS OF AUTOIMMUNE PANCREATITIS (AIP)

Background: Two distinct histological patterns, viz., LPSP and IDCP, are seen in AIP (Am J Surg Path 2003:27;1119-27). Methods: We compared the profiles of histologically confirmed LPSP (n = 28) (Features: periductal lympho-plasmacytic infiltrate, storiform fibrosis and obliterative phlebitis without granulocyte epithelial lesions (GELs) and IDCP (n = 13) (Features: prominent neutrophilic infiltrate in the lobule and duct (GELs) with duct...