TAILIEUCHUNG - The IASLC Lung Cancer Staging Project: A Proposal for a New International Lymph Node Map in the Forthcoming Seventh Edition of the TNM Classification for Lung Cancer

The need for a comprehensive NCI-wide terminology arose because NCI staff requires access to timely and accurate information about activities related to the scientific mission of the Institute. The collection, storage and retrieval of data related to NCI research programs is necessary to analyze, manage, and report about these activities. Though centralized coding of NCI-supported research-related activities met some of these needs, supplementary data coding had become common. This coding was assigned independently within various components of the Institute, and was frequently based on locally . | IASLC Staging Committee Article The IASLC Lung Cancer Staging Project A Proposal for a New International Lymph Node Map in the Forthcoming Seventh Edition of the TNM Classification for Lung Cancer Valerie W. Rusch MD Hisao Asamura MD Ỷ Hirokazu Watanabe MD Ị Dorothy J. Giroux MS Ramon Rami-Porta MD and Peter Goldstraw MD y on Behalf of the Members of the IASLC Staging Committee Abstract The accurate assessment of lymph node involvement is an important part of the management of lung cancer. Lymph node maps have been used to describe the location of nodal metastases. However discrepancies in nomenclature among maps used by Asian and Western countries hinder analyses of lung cancer treatment outcome. To achieve uniformity and to promote future analyses of a planned prospective international database the international Association for the Study of Lung Cancer proposes a new lymph node map which reconciles differences among currently used maps and provides precise anatomic definitions for all lymph node stations. A method of grouping lymph node stations together into zones is also proposed for the purposes of future survival analyses. Key Words Lung cancer lymph node map Lung cancer staging Pulmonary and mediastinal lymph nodes lymph node zones TNM classification. JThorac Oncol. 2009 4 568-577 The accurate assessment of lymph node involvement is recognized as a pivotal component of the staging and treatment of lung cancers. For approximately the past 40 years lymph node maps have been used to describe the clinical and pathologic extent of lymph node metastases in lung cancer patients by labeling regions of intrathoracic nodes using a system of anatomic descriptors and numerical levels. Precise universally accepted nomenclature to describe lymph node involvement is key to assessing treatment outcomes comparing results across institutions designing and analyzing clinical trials and selecting therapy for individual patients. The first lymph node map Thoracic Surgery Service

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