Concordância histológica e citológica em pacientes submetidas à conização do colo do útero

Abstract

Objective: To verify the concordance between histopathological and cytopathological exams of patients with cervical lesions in a laboratory in the North of Rio Grande do Sul. Methods: Cross-sectional, concordance study, based on a convenient sample of 139 patients, from the data base of a laboratory from the North of Rio Grande do Sul from January 2017 to April 2018. The absolute and relative frequencies of the ages of the patients were described and the types of lesions observed in cytopathological examinations were listed: inflammatory changes, low (LSIL) and high grade intraepithelial lesions (HSIL), lesions in squamous cells and lesions in glandular cells. The concordance between the methods of cytology and histopathology was performed with the Kappa index. Results: The patient’s age mean was 33 years (SD ± 13). Most of the lesions detected by cytohistopathological methods were LSIL (52%) and inflammatory alterations (34%). HSIL and invasive carcinomas and adenocarcinomas were respectively (14%) and (0.7%). The agreement between the cytological and histological methods was K = 0.56 (0.34 to 0.77), p <0.001. The sensitivity was 45% and the specificity was 99.2%. The positive predictive value was 90% and the negative predictive value was 91.5%. Conclusion: The Pap smear test is an important tool for screening cervical neoplasms, considering that there is an adequate support to insure its quality.