This separation of perihilar and distal tumors aims to provide improved predictions of life expectancy with the TNM staging system which was created in response to criticism of previous classification systems that did not adequately predict the life expectancies of patients with these tumors 6.
Esta separación de los tumores perihiliares y distales pretenden mejorar el papel predictivo de la sobrevida con el TNM, en respuesta a las críticas de los sistemas clasificatorios previos que no discriminaban adecuadamente la sobrevida en estos tumores 6.