ArticleCancers2026
Dysplastic Transformation in Sporadic Fundic Gland Polyps: Prevalence, Clinical and Endoscopic Characteristics in an Asian Cohort.
Article in Cancers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
objectivesFundic gland polyps (FGPs) are the most common type of gastric polyp and have increased in prevalence in the proton pump inhibitor (PPI) era. Although traditionally considered benign, dysplasia has been described in both syndromic and sporadic FGPs; data from Asian cohorts remain limited. We evaluated the prevalence of FGPs with dysplasia (FGPD) and described associated clinical and endoscopic features in a Taiwanese tertiary-care cohort.
methodsWe retrospectively searched institutional pathology archives for all gastric biopsy or polypectomy specimens diagnosed as FGP between January 2000 and December 2024 and mapped these specimens to unique patients using medical record numbers. Candidate dysplastic cases underwent slide review by gastrointestinal pathologists to confirm FGPD and grade dysplasia as low- or high-grade according to standard gastric dysplasia criteria. Cases were classified as syndromic if a hereditary polyposis syndrome was documented; otherwise, they were classified as sporadic. Clinical and endoscopic variables were abstracted from electronic medical records. Patient-level prevalence estimates among patients with FGP are reported with exact 95% confidence intervals (CIs).
resultsAmong 35,806 unique patients with histologically confirmed FGP, 25 FGPD cases were confirmed (21 sporadic, 4 syndromic). The patient-level prevalence of sporadic FGPD was 0.059% (21/35,806; 95% CI: 0.036-0.090%). Among sporadic cases, dysplasia was low-grade in 19 (90.5%) and high-grade in 2 (9.5%). Sporadic cases occurred at a median age of 48 years (interquartile range [IQR]: 37-63.5 years), and 57.1% were female. Documented PPI exposure before the index FGPD endoscopy was present in 33.3% of patients (median documented duration: 36 months [IQR: 12-125]). No case had documented current
conclusionsSporadic FGPD was exceedingly rare in this 25-year Taiwanese cohort and was predominantly low-grade. Although typically small and body/fundus-predominant, FGPs with erythema or surface irregularity-particularly with irregular microvascular patterns on narrow-band imaging-should prompt histologic assessment to exclude dysplasia.
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