Background:

Breast cancer is the leading cause of death in women in Mexico; it is a heterogeneous disease that requires a multidisciplinary approach.

Objective:

To review the anatomopathological and immunohistochemical characteristics in triple-negative breast cancer patients described in the Mexican population and compare them with the sample reported from January 2009 to August 2015 at the Hospital Ángeles Pedregal.

Material and methods:

We conducted a cross-sectional, descriptive and retrospective study of patients with diagnosis of triple-negative breast cancer and mammography studies performed during the period from January 2009 through August 2015 at the Hospital Ángeles Pedregal.

Results:

We identified 3,290 breast tissue specimens, 600 (18.24%) with histopathologic diagnosis of breast cancer. Triple-negative breast cancer was reported in 58 cases (9.6%). Average age of diagnosis: 56 years; histological type: 80.13% infiltrating ductal carcinoma; average tumor size < 20 mm: 55.31%. Mammography, 32 cases: BIRADS 5 (6.25%), BIRADS 4 (75%), BIRADS 3 (18.75%).

Conclusions:

This study showed an average age of diagnosis of 56 years, suitable mammographic and histopathologic correlation, tumor size < 2 cm in half the cases, with characteristics similar to other studies reported in Mexican population.