Falsos positivos para diagnóstico de cáncer de mama en la biopsia, posterior a un estudio de imagen con BIRADS 4A o mayor, durante periodo 2009-2010 en el Instituto del Cáncer SOLCA Loja

Abstract

Abstract:The following investigative work s objective was to determine the quantity of patients with false positive results for breast cancer diagnosis according to biopsy, after receiving an image study with a BIRADS classification of 4A or higher, in the Instituto del Cáncer SOLCA Nucleo de Loja, during the years 2009-2010. The study was descriptive, transversal, and retrospective, employing the observational method, to proceed with the data gathering through the clinical history revision in SOLCA s database. A universe of 127 patients was established who were diagnosed with breast cancer during the years 2009-2010, out of which 56 were excluded due to the exclusion criteria for this study, the final sample included 71 patients. The results obtained demonstrated that 52 patients were submitted to screening of their pathology by mammography, 1 patient by echography and 18 patients were submitted to both, the most common BIRADS score was 4A (43.7%) and the least frequent was BIRADS 6 (2.8%). Finally, it was determined that 64 patients (90.1%) had biopsy results that were positive for malignancy, as 7 patients (9.8%) had negative biopsy results.