What question did this study set out to answer?

The study aims to evaluate the level of agreement among pathologists in diagnosing and classifying colorectal polyps.

February 12, 2026Open Access

Interobserver agreement among pathologists in the histopathological diagnosis and classification of colorectal polyps

EJElham JafariKerman University of Medical Sciences MLMahdiye LashkarizadehKerman University of Medical Sciences NNNazanin Zeinali NezhadKerman University of Medical Sciences

Key Points

The study aims to evaluate the level of agreement among pathologists in diagnosing and classifying colorectal polyps.
Assessment of diagnostic accuracy by multiple pathologists
Comparison of diagnoses on various polyp types and dysplasia grading
Analysis of interobserver variability in classifications
Good agreement observed for adenomatous polyps and carcinoma
Significant variability noted for certain polyp types
Challenges identified particularly in grading dysplasia and assessing serrated lesions

Abstract

While agreement was good for adenomatous polyps and carcinoma, considerable variability exists in diagnosing certain polyp types and grading dysplasia. These findings highlight the need for standardized criteria and additional training to improve consistency in colorectal polyp assessment, particularly for serrated lesions and dysplasia grading.

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