El cáncer de mama es la neoplasia más común en mujeres a nivel mundial, al igual que en nuestro país. Sin embargo, en México, existen diferencias que son importantes de identificar e individualizar para mejorar los desenlaces de las mujeres que padecen esta enfermedad, por lo que el objetivo de esta 8ª revisión del consenso es el de proveer una guía nacional actualizada, basada en la mejor evidencia científica, ajustada a la heterogeneidad de nuestro sistema de salud y a las necesidades y coberturas terapéuticas existentes. Se reconoce mundialmente que el tratamiento del cáncer de mama es multimodal y requiere de un grupo multidisciplinario que ayude a tomar las mejores decisiones terapéuticas, por lo que las conclusiones de este consenso proveen de la mejor evidencia para guiar los tratamientos quirúrgico, con radioterapia y sistémico, basados en las características de la paciente, del tumor y del sistema de salud. Finalmente en esta edición se hace un especial hincapié en la necesidad de realizar un diagnóstico preciso tempranamente e iniciar el tratamiento indicado de manera rápida, ya que se ha comprobado que el retraso en el mismo afecta negativamente la tasa de sobrevida.Palabras clave: Consenso de Colima. Consenso cáncer mamario. Guías cáncer mamario. México. AbstractBreast cancer is the most common neoplasm in women worldwide, as well as in our country. However, in Mexico there are differences that are important to identify and individualize in order to improve the outcomes of women suffering from this disease. Thus, the purpose of this 8 th consensus review is to provide a national updated guideline, based on the best scientific evidence, and adjusted to the heterogeneity of our health system and to the existing needs and therapeutic coverage.

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Spermatic cord liposarcoma (SCL) is a rare medical condition; to our knowledge there have been fewer than 100 cases reported in the literature worldwide. As a group, para-testicular tumors are relatively uncommon, and they must be differentiated from tumors of testicular origin with extension to the spermatic cord and its elements. SCL should be suspected in patients experiencing recurrent hernias of the inguinal region. Herein we present two cases of SCL recently diagnosed at our hospital. In both instances, the preoperative diagnosis was inguinal hernia.

ObjectiveOur objective was to determine whether a delay in adjuvant radiotherapy is related to a decrease in relapse-free survival and disease-specific survival of women with operable breast cancer.MethodsData on 1000 patients diagnosed with breast cancer were recorded. The cohort was divided into five groups according to the timing of radiotherapy: ≤30 days, 31 to 60 days, 61 to 90 days, 91 to 120 days, and >120 days. The relapse-free survival and disease-specific survival were also calculated in relation to the number of patients.ResultsThis study found no statistical difference for delays in adjuvant radiotherapy in patients with early breast cancer, but we noted a statistical decrease in disease-specific survival in patients with locally advanced breast cancer receiving radiotherapy after a delay of at least 60 days.ConclusionWaiting times for radiotherapy should be as short as reasonably achievable, given the specific risk factors in the individual patient.

By reducing costs and time needed for patients to receive radiotherapy, IORT could potentially enhance access to breast conservation in resource-limited developing countries.