Estandarización en la Observación y Clasificación de Lesiones Epiteliales Premalignas y Malignas

in the histological criteria for determining the degree of dysplasia, the broders classification and the front of tumor invasion (fti) are unquantifiable subjective parameters that may indicate the degree of development of carcinomas. an important factor to consider during the histological evaluation is the variability in the diagnosis of pathologists. the objective to standardize criteria and determine the intra and inter-observer variability in the diagnosis of dysplasias and oscc. we selected and standardized morphological criteria for the diagnosis, and the cases were reviewed randomly by three oral pathologists (30 dysplasias and 30 carcinomas) from the laboratory of clinical and experimental pathology of the fo depei, unam. each pathologist analyzed and recorded the parameters for dysplasia and oscc fit on two occasions. kappa test was applied to assess intra and inter-observer agreement. observer 1 v/s 2 match for oscc was 0.75, 0.60 for dysplasias and intra observer 0.90. observer 2 v/s 3 presented a concordance of 0.75 for oscc, 0.59 for dysplasias and intra-observer 0.91. observer 3 v/s observer 1 for oscc was 0.77, 0.59 for dysplasias and intra-observer 0.92. intra observer and inter-observer concordance in oscc were good or excellent, but in dysplasia was acceptable, confirming that its assessment showed the greatest difficulty with proper standardization we can obtain a better consensus between pathologists.