Most breast cancers in men are ductal carcinomas. Ductal means the cancer started in the milk pipes of the breast, called ducts. These cancers are usually invasive because they start inside the duct and then break through the wall of the duct, growing into the normal surrounding breast tissue.
In Mexican patients, median age of presentation occurred ten years earlier than previously reported. Incidence of second malignancies was remarkably high because of small population. 83% of documented deaths occurred due to breast cancer progression. Surgery clearly improved overall survival. The low incidence of disease makes hard to standardize management patterns or extent epidemiological profile to larger populations.