Immunoglobulin G4-related disease requiring clinical attention: A case report and review of literature

Figure 1 Imaging findings (computed tomography) of immunoglobulin G4-related cholecystitis. A: Non-contrast computed tomography (CT) scan at the initial visit showed localized thickening at the gallbladder fundus (arrow); B: Arterial-phase contrast-enhanced CT demonstrated enhancement at the site of thickening in the gallbladder fundus (arrow); C: Venous-phase contrast-enhanced CT revealed persistent enhancement at the thickened area of the gallbladder fundus (arrow); D: Delayed-phase contrast-enhanced CT showed continued enhancement at the thickened site of the gallbladder fundus (arrow); E: Preoperative non-contrast CT scan indicated persistent localized thickening at the gallbladder fundus (arrow); F: Postoperative CT scan 1 week after surgery demonstrated good recovery in the surgical area.