{Reference Type}: Case Reports
{Title}: A Case of Immunoglobulin G4-Related Gastrointestinal Disease Diagnosed From Persistent Diarrhea and Abdominal Pain.
{Author}: Hirano T;Kawakami Y;Nakabayashi S;Wagatsuma K;Ishigami K;Masaki Y;Murota A;Kanda M;Sugita S;Notohara K;Nakase H;
{Journal}: Gastro Hep Adv
{Volume}: 2
{Issue}: 8
{Year}: 2023
暂无{DOI}: 10.1016/j.gastha.2023.07.009
{Abstract}: Immunoglobulin G4-related disease (IgG4-RD) is a systemic inflammatory disease characterized by the infiltration of IgG4-positive plasma cells and fibrosis in organs throughout the body. IgG4-RD involvement in the gastrointestinal (GI) tract (IgG4-related GI disease; IgG4-GID) is rare, and the disease concept remains unclear. Generally, IgG4-GID has been reported with morphological changes, including ulcers, strictures, and submucosal tumors. Here, we report a case of IgG4-GID with persistent diarrhea and abdominal pain in which typical endoscopic findings were absent. This case suggests the unidentified clinical features of IgG4-GID.