title: Immunoglobulin G4-Related Inflammatory Pseudotumor Presenting as a Solitary Mass in the Stomach.
abstract: Immunoglobulin G4 (IgG4)-related disease (IgG4RD) is a relatively recently recognized entity that is histopathologically characterized by an extensive infiltration of lymphocytes and IgG4-positive plasma cells with dense fibrosis. IgG4RD is now known to affect any organ system, and a few cases of gastrointestinal lesions have also been reported. However, solitary IgG4RD of the stomach is still very rare. Furthermore, as it can mimic malignant conditions, it is important to recognize this disease to avoid unnecessary surgery. Herein, we present a case of IgG4RD presenting as an isolated subepithelial mass in the stomach.
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors: Hong Ryeol
authors: HR
authors: Cheong
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors: Bong Eun
authors: BE
authors: Lee
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors: Geun Am
authors: GA
authors: Song
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors: Gwang Ha
authors: GH
authors: Kim
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors: Sung Gyu
authors: SG
authors: An
authors: Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
authors: Won
authors: W
authors: Lim
keywords: Immunoglobulin G4-related sclerosing disease; Pseudotumor; Stomach