[The process of the revision of staging system for lung cancer(UICC-7)].

The agenda for a new staging system for lung cancer has been determined and proposed to the UICC and AJCC by the IASLC (International Association for the Study of Lung Cancer) staging committee. Publication by both organizations is scheduled late this year. For the present revision, the IASLC launched a staging project early and accumulated data on more than 100, 000 patients from all continents. Based on these data, an agenda was established, in which the new categorization of T according to tumor diameter and satellite nodules, the creation of new lymph node chart, and the new stage grouping are characterized. The new staging system (UICC-7) is scheduled to take effect as of from January, 2010.