Computed tomographic atlas for the new international lymph node map for lung cancer: A radiation oncologist perspective

International audiencePurpose : To develop a reproducible definition for each mediastinal lymph node station based on the new TNM classification for lung cancer. Methods and Materials : This paper proposes an atlas using the new international lymph node map used in the seventh edition of the TNM classification for lung cancer. Four radiation oncologists and 1 diagnostic radiologist were involved in the project to put forward a reproducible radiologic description for the lung lymph node stations.Results : The International Association for the Study of Lung Cancer lymph node definitions for stations 1 to 11 have been described and illustrated on axial computed tomographic scan images using a certified radiotherapy planning system. Conclusions : This atlas will assist both diagnostic radiologists and radiation oncologists in accurately defining the lymph node stations on computed tomographic scan in patients diagnosed with lung cancer