José J. Márquez-Barajas, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Manuel Solano-Genesta, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Leonora Valdez-Rojas, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Johana J. Garnica-Vázquez, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico José F. Anaya-Gómez, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Sergio A. Trujillo-Vega, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Oscar Bañuelos-Robles, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Guillermo E. Juárez-López, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Estefania N. Valdés-Peregrina, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Cristina A. Luna-González, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico Luis A. García-González, High Specialty Unit in Breast Cancer, Insituto Nacional de Oncología, Guadalajara, Jalisco, Mexico


Objective: The present study aims to highlight the utility of quantitative polymerase chain reaction (qPCR) as a method for identifying typical and atypical mycobacterial infections in patients with mastitis and granulomatous lymphadenitis. Materials and methods: A total of five patients initially diagnosed with mastitis or granulomatous lymphadenitis based on their clinical characteristics in whom conventional tests were used as a diagnostic method were selected. Conclusion: The present study showed that the routine performance of qPCR for typical and atypical mycobacteria allows for improved diagnosis.



Keywords: Quantitative polymerase chain reaction. Mycobacterium spp. Granulomatous mastitis. Granulomatous lymphadenitis.