Diffuse lymphoplasmacytic chronic cholecystitis is highly specific for extrahepatic biliary tract disease but does not distinguish between primary and secondary sclerosing cholangiopathy.
Abraham SC, Cruz-Correa M, Argani P, Furth EE, Hruban RH, Boitnott JK. Diffuse lymphoplasmacytic chronic cholecystitis is highly specific for extrahepatic biliary tract disease but does not distinguish between primary and secondary sclerosing cholangiopathy. Am J Surg Pathol. 2003 Oct; 27(10):1313-20.