Perfil epidemiológico e clínico de mulheres jovens com câncer de mama no Amazonas: estudo de onze anos

Abstract

The breast cancer is a neoplasm of concerning epidemiology , once it brings expressive numbers among women all over the world. In Brazil 57,960 new breast cancer cases are expected to occur in 2016, and in Manaus –Amazon 680 cases were expected in 2015. This study aims to describe the epidemiological and clinical profile of patients , average age about at 40 years old with breast cancer who have been diagnosed and treated at Fundação Centro de Controle de Oncologia do Amazonas - FCECON, between 2003 and 2013. An epidemiological data analysis was performed relating age, histological type, staging, immunohistochemicalpanel , performed treatment , follow up , diagnosis accuracy, and therapy , through patient medical records registries. The data were computed in a database and analyzed upon descriptive statistics. 211 breast cancer patients below 40 years old were observed during the study period and they represent 9,83% of the total case number of about 2,147 women in 10 years. The most affected age group was between 35 and 40 years old , the predominant molecular type was triple negative. Mastectomy was performed on 158(70,6%) patients and quadrantectomy on 39 (18,5%) patients and there were 21(9,9%) death cases. Regarding the clinical staging 57 cases were on stage IIA when diagnosed. 71 patients had the screening method upon clinical exams or self-exams. Global survival was 81,6% and was negatively influenced by the advanced clinical staging for this group ,where stage IIIB determined the survival of 54,7%. The most aggressive treatment and the survival decrease are related to the advanced stage once they are not part of the mammographic screening.