Validation of the simplified PIBD-classes criteria: A single-center retrospective study.

Background: Pediatric inflammatory bowel disease (PIBD) subtypes are classified according to the PIBD-classes criteria, comprising 23 items. These criteria were later simplified to 19 diagnostic items. Inflammatory bowel diseases (IBDs) are classified as ulcerative colitis (UC), atypical UC, IBD-unclassified (IBD-U), Crohn's disease (CD), or isolated colonic CD.

First case report of dichorionic diamniotic twins with chronic enteropathy associated with the SLCO2A1 gene.

We report the case of twins diagnosed with chronic enteropathy associated with the SLCO2A1 gene (CEAS) based on characteristic ulcer findings, which required 8 years to diagnose. Both twins had similar symptoms, including anemia and growth failure but the gastrointestinal tract was not evaluated initially because of mild symptoms that were considered consistent with psychological etiology. The endoscopic findings of the firstborn child showed spiral ulcer scars and pseudodiverticulum formation without Helicobacter pylori infection or eosinophilic infiltration in the duodenum.