UFG – FMTo verify the prevalence of malignant neoplastic breast lesions (LNMM) in women in the first half of 2015 in the Brazilian regions, to correlate it with the number of mammograms performed during this period and to estimate a profile of women affected by the lesions. A descriptive study was performed on the prevalence of LNMM in the first half of 2015 in the Brazilian regions, based on secondary data from the Breast Cancer Information System (SisMama). The search was guided by the independent variables: age, schooling and race-color. Subsequently, the analysis and processing of the data were performed. The prevalence of LNMM in Brazilian regions in relation to the number of mammograms performed is directly related. The region with the highest prevalence was the Southeast, with 4,305 out of 4890 cases (88%), followed by the Northeast region with about 6% of the diagnoses (297). In the period, of the 593,515 mammograms performed, 488,199 (82.2%) were in the Southeastern region, 69,132 (11.64%) in the Northeast, 23,270 (3.92%) in the North and 12,824 (2.16%) in the Center-West. As for age, it was observed that over 45 years was more prevalent (3966 cases in all, 81.1%). As for race-color, 5 profiles were established: white, black, brown, yellow and without information, being “without information” the profile that most concentrated the cases (3752 cases, 76.72%) followed by “white” (871 cases, 17.8%). It was noted that the given “schooling” was ignored during data collection in all regions (4067 cases, 83.1%). Southeastern region is the one that most performs mammographies and has a higher prevalence of LNMM, reinforcing that the more preventive tests performed, the greater the number of malignant lesions diagnosed. From the data collected it is not possible to estimate a profile of women affected by breast neoplasm in Brazil. Keywords: mammography, malignant neoplastic breast lesions, prevalence.malignant neoplastic breast lesions, mammography, PREVALENCE
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