Mejías Manzano, María de Los ÁngelesTrigo Salado, ClaudioSerrano Jiménez, MaríaParada Blázquez, Mariano JoséLeo Carnerero, Eduardo2025-01-072025-01-0720181130-0108https://hdl.handle.net/10668/27531The 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.enAbdominal PainAdipocytesAdrenal Cortex HormonesAdultDiagnosis, DifferentialHumansImmune System DiseasesImmunoglobulin GMaleMesenteryPeritoneal DiseasesTomography, X-Ray Computedresearch article29271222open access10.17235/reed.2017.5228/2017https://doi.org/10.17235/reed.2017.5228/2017