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The diagnosis of dysplasia in Barrett esophagus (BE), which affects the frequency with which costly and invasive endoscopic screening is performed, is vulnerable to interobserver disagreement. To assess diagnostic performance across different pathology groups, researchers retrospectively analyzed biopsy findings from over 4700 patients undergoing surveillance endoscopy for BE in a large, multihospital healthcare system.
Pathology practices included 1 subspecialized gastrointestinal (SSGI) pathology group (162 BE cases/pathologist/year), 3 independent high-volume general pathology groups (>50 BE cases/pathologist/year), and a combined group of 12 low-volume general pathology practices (10 BE cases/pathologist/year).
The prevalence of low-grade…