[Assessment of the fifth edition of the tumor-node-metastasis (TNM) classification for gastric cancer in our setting]. / Valoración de la 5.a edición de la clasificación TNM para el cáncer gástrico en nuestro medio.

AIM: To estimate the proportion of patients with gastric carcinoma that can be classified using the criteria of the fifth edition of the TNM system and to analyze which factors could be related to the finding of an adequate number of nodes. PATIENTS AND METHOD: The influence of distinct factors that could influence the number of lymph nodes isolated was evaluated in 164 patients who underwent resection of gastric carcinoma. These factors included tumor size, surgical resection, grade, histological type, variability among the pathologists who analyzed the surgical specimens, and the surgeon's experience. RESULTS: The mean number of lymph nodes examined by the pathologists was 11.4 (10.12-12.66). Applying the criteria of the fifth edition of the TNM classification, only 31% of the patients could be correctly classified. A positive correlation was found between tumor size and the number of resected nodes (p = 0.0018). In addition, a greater number of lymph nodes were found in total gastrectomies than in subtotal gastrectomies (p = 0.034). No significant association was found with the pathologist who analyzed the surgical specimen or with the experience of the surgeon who performed the resection. CONCLUSIONS: The fifth edition of the TNM system is easily reproducible, although the number of lymph nodes required to evaluate metastatic node involvement is difficult to obtain in our environment. Our results suggest that a combined effort between surgeons and pathologists is needed to increase the number of patients that can be reliably staged with this TNM edition.

[Application of the EUSOMA criteria in breast units in countries of the European Union]. / Aplicación de los criterios de EUSOMA en las unidades funcionales de mama de los países miembros de la Unión Europea.

All the countries of the European Union face similar challenges when providing adequate and high quality treatment in oncology. A working party was established to consider what should comprise a specialist service and the Requirements of a Breast Unit, published in 2000, represent the opinion of the European Society of Mastology (EUSOMA) on the standards required for creating high quality Breast Cancer Units across Europe. We studied the application of the mandatory requisites and general recommendations of EUSOMA: critical mass, or minimum number of patients, core team (composition and specific training), quality assurance, and application of diagnostic and treatment protocols. A thorough literature search was performed and was completed with information from search tools, the web pages of scientific societies, national associations for the fight against cancer, and health ministries of the countries belonging to the European Union. We also analyzed the latest reports of the European Parliamentary Committee for breast cancer. Distinct approaches to the multidisciplinary management of breast disease can be found in the United Kingdom, Sweden, Italy, France and Spain. A common European standard would be useful to improve the care provided to patients.