Evaluation was achieved using light microscopy and patients were graded according to Tarplay's grading system. Sjögren's syndrome diagnosis was established based on criteria proposed in 2002 by the Group of American and European Consensus. The main objective criterion used was histopathology of labial salivary glands.
El diagnóstico de síndrome de Sjögren se estableció con base en los criterios propuestos por el Grupo de Consenso Americano y Europeo en el 2002, empleando como principal criterio objetivo la histopatología de las glándulas salivales labiales.