RT Journal Article T1 IgG4-related sclerosing mesenteritis, a rare condition that causes abdominal pain. A1 Mejías Manzano, María de Los Ángeles A1 Trigo Salado, Claudio A1 Serrano Jiménez, María A1 Parada Blázquez, Mariano José A1 Leo Carnerero, Eduardo AB The identification of IgG4-related disease as a distinct immune-mediated condition encompassing disorders that were traditionally seen as idiopathic has been a revolution in the diagnostic and therapeutic algorithm in several medical fields. This condition usually involves multiple organs (isolated organ involvement is uncommon except in the pancreas) with characteristic histopathological findings. We report a case that was assessed due to abdominal pain and subsequently diagnosed with IgG4-related sclerosing mesenteritis. A comprehensive work-up of the case ruled out other conditions and a diagnosis of IgG4-related sclerosing mesenteritis was made according to radiographic and histopathological criteria. SN 1130-0108 YR 2018 FD 2018 LK https://hdl.handle.net/10668/27531 UL https://hdl.handle.net/10668/27531 LA en DS RISalud RD Apr 8, 2025