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Radiology Research and Practice
Volume 2012, Article ID 127485, 7 pages
http://dx.doi.org/10.1155/2012/127485
Clinical Study

Mammographic Breast Density Patterns in Asymptomatic Mexican Women

1Instituto de Medicina Forense, Universidad Veracruzana, 94294 Boca del Río, VER, Mexico
2Unidad de Medicina Familiar No. 2, Instituto Mexicano del Seguro Social, 43612 Tulancingo, HGO, Mexico
3Centro Medico Nacional del Noreste, Instituto Mexicano del Seguro Social, UMAE 25, 64180 Monterrey, NL, Mexico
4Facultad de Enfermeria, Universidad Autonoma de Nuevo Leon, 64460 Monterrey, NL, Mexico

Received 28 September 2012; Revised 28 November 2012; Accepted 12 December 2012

Academic Editor: Philippe Soyer

Copyright © 2012 Ana Laura Calderón-Garcidueñas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Breast density (BD) is a risk factor for breast cancer. Aims. To describe BD patterns in asymptomatic Mexican women and the pathological mammographic findings. Methods and Material. Prospective, descriptive, and comparative study. Women answered a questionnaire and their mammograms were analyzed according to BI-RADS. Univariate ( ) and conditional logistic regression analyses were performed. Results. In 300 women studied the BD patterns were fat 56.7% (170), fibroglandular 29% (87), heterogeneously dense 5.7% (17), and dense pattern 8.6% (26). Prevalence of fat pattern was significantly different in women under 50 years (37.6%, 44/117) and older than 50 (68.8%, 126/183). Patterns of high breast density (BD) (dense + heterogeneously dense) were observed in 25.6% (30/117) of women ≤50 years and 7.1% (13/183) of women >50. Asymmetry in BD was observed in 22% (66/300). Compression cone ruled out underlying disease in 56 cases. In the remaining 10, biopsy revealed one fibroadenoma, one complex cyst, and 6 invasive and 2 intraductal carcinomas. 2.6% (8/300) of patients had non-palpable carcinomas. Benign lesions were observed in 63.3% (190/300) of cases, vascular calcification in 150 cases (78.9%), and fat necrosis in 38 cases (20%). Conclusions. Mexican women have a low percentage of high-density patterns.