National multidisciplinary tumor board (MTB): Report of the first 526 questions raised within RYTHMIC, the network for thymic malignancies in France.

7605 Background: RYTHMIC (Reseau tumeurs THYMiques et Cancer) is a nationwide network for thymic malignancies, which was funded in 2012 by the French National Cancer Institute. The objectives of the network include a territorial coverage by regional expert centers, elaboration of recommendations, dissemination of knowledge and promotion of collaborative research. All patients diagnosed with thymic malignancy in France have to be discussed on a real-time basis at a reference web-based national MTB or regional MTB. Patient’s data from the MTB were prospectively entered in a database. Methods: We report the patient’s and tumor’s characteristics and treatment modalities of the patients included during the first 2 years of MTB. Questions raised during the MTB were reviewed. Results: From January to December 2013, 383 patients were included in the RYTHMIC database. There were 197 (51%) men and 186 (49%) women. Among 304 cases, histology was thymoma for 198 (65%) patients (16 (5%) type A, 31 (10%) type AB, 38 (1...