PREVALENCE OF MALIGNANT BREAST LESIONS IN YOUNG WOMEN FROM NORTHEASTERN BRAZIL
Palavras-chave:
Neoplasias da Mama; Epidemiologia; Histopatologia; Diagnóstico Precoce; Serviços de Saúde da Mulher, Neoplasias de Mama.Resumo
Objective: To analyze the prevalence of malignant breast lesions in women aged 15–34 years in Northeast Brazil between 2014 and 2023. Methods: This cross-sectional, descriptive study was based on data from the Cancer Information System (SISCAN), available through the Department of Informatics of the Brazilian Unified Health System (DATASUS). All histopathological breast examinations performed in public healthcare facilities were included, based on the patients’ municipalities of residence. Absolute and relative frequencies were calculated. The prevalence of malignant lesions was estimated considering the total number of histopathological examinations (benign and malignant) using the exact binomial test to compute 95% confidence intervals (CI). Results: A total of 23,317 histopathological breast examinations were performed in young women from Northeast Brazil. Most tests were performed in women aged 25–34 years (55.18%), and 68% of the patients self-identified as mixed race or Asian. Among all examinations, 92.79% revealed benign lesions, while 7.21% (95% CI: 6.88–7.55) indicated malignancy. The highest prevalences of malignant lesions were observed in the states of Piauí (11.23%; 95% CI: 7.28–16.38), Bahia (10.70%; 95% CI: 9.74–11.72), and Alagoas (10.09%; 95% CI: 8.00–12.52). Conclusion: Although benign findings predominated, the occurrence of malignant neoplasms in women under 35 years old underscores the need for careful clinical assessment. These findings highlight the importance of prospective epidemiological studies to better evaluate breast cancer incidence in this population and to strengthen early diagnostic strategies.
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