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DOI: 10.1016/j.jcol.2015.06.008
Interobserver variability in histological diagnosis of serrated colorectal polyps
Variabilidade interobservador no diagnóstico histológico de pólipos colorretais serrilhados
Abstract
Objectives To compare the interobserver variability in the diagnostic of serrated and non-serrated adenomatous lesions and hyperplastic polyps of colon between two groups of pathologists.
Methods 310 colorectal polyps were studied, with histological diagnoses established by a group of pathologists comprising three general pathologists for initial diagnosis, and two gastrointestinal pathologists for expert diagnosis.
Results High interobserver variability was observed in the diagnosis of serrated polyps, when comparing the initial diagnosis with the expert diagnosis (kappa = 0.102). For the majority of both traditional serrated adenomas and sessile serrated adenomas (27/31), a diagnosis of hyperplastic polyps was established at the initial diagnosis.
Conclusions Poor agreement was observed in the diagnosis of serrated polyps between the two groups of pathologists. The accuracy in the diagnosis of these lesions is essential for the prevention of colorectal cancer.
Resumo
Objetivo Comparar a variabilidade interobservador dos diagnósticos das lesões adenomatosas serrilhadas e não serrilhadas e pólipos hiperplásicos do cólon entre dois comitê de patologistas.
Métodos Foram estudados 310 pólipos colorretais, diagnosticados histologicamente por um comitê de patologia, composto por três patologistas gerais para o diagnóstico inicial e por dois patologistas gastrointestinais para o diagnóstico dos especialistas.
Resultados Houve alta variabilidade interobservador no diagnóstico dos pólipos serrilhados, ao serem comparados o diagnóstico inicial com o diagnóstico dos especialistas (kappa = 0,102). A maioria das lesões adenomatosas serrilhadas sésseis e tradicionais (27/31) foi diagnosticada pelo diagnóstico inicial como pólipos hiperplásicos.
Conclusões Houve baixa concordância no diagnóstico dos pólipos serrilhados colorretais entre os dois comitês de patologistas. A acurácia desses diagnósticos é fundamental para a prevenção do carcinoma colorretal.
Publikationsverlauf
Eingereicht: 31. März 2015
Angenommen: 08. Juni 2015
Artikel online veröffentlicht:
17. Februar 2021
© 2015. Sociedade Brasileira de Coloproctologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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