Hum Pathol 2015 Apr 29;46(4):625-8. Epub 2015 Jan 29.
Baptist Memorial Hospital, 6019 Walnut Grove, Memphis, TN 38120, USA; Pathology Group of the Midsouth/Trumbull Laboratories, 7550 Wolf River Blvd, Suite 200, Germantown, TN 38138, USA. Electronic address:
Hyalinizing cholecystitis (HC) is a recently described rare subtype of chronic cholecystitis characterized by dense, paucicellular collagenous transmural fibrosis, which usually replaces the mucosa and muscularis propria. Immunoglobulin (Ig)G4-associated cholecystitis is also a newly described cholecystitis variant characterized by transmural or extramural lymphoplasmacytic inflammation, lymphoid follicles, storiform fibrosis, phlebitis, and increased tissue IgG4-positive plasma cells. We describe a case of cholecystitis in an elderly white man who harbored features of both HC and IgG4-associated cholecystitis. Read More