Head and neck tumors in children and adolescents: Impact of a multidisciplinary tumor board.

Cancer treatment in France is based on Multidisciplinary Tumor Board (MTB). In the Ile-de-France region (IDF), which includes 12 million inhabitants from Paris and the surrounding area, pediatric tumors of head and neck are discussed since 2013 in a dedicated Interregional Pediatric Multicentric MTB (IPMTB). The purpose of this study is to analyze the impact of the IDF head and neck IPMTB on the management of these tumors, 5 years after their implementation. Retrospective study of all patient files presented in the IPMTB for a benign or malignant head-and-neck tumor, between 2013 and 2018. A total of 679 discussions were analyzed representing 428 patients. Median age was 7.5 years (range: 0-31 years). Malignant tumors represented 71% of cases, including 36% of rhabdomyosarcoma. Overall, 12% percent of the cases discussed came from centers outside of IDF. All meetings complied with multidisciplinary criteria required by French law. Proposals made during the IPMTB were followed in 86% of cases. Among the 251 proposals made by the referring teams prior to the IPMTB, 29% were secondarily modified after being discussed in the IPMTB. Thanks to their multidisciplinarity, high number of cases discussed and usual respect of their proposals, the IPMTB have made it possible to improve the coordination between all specialties involved in the patient's management, to apply the most recent and scientifically validated protocols, and to share the knowledge of different teams concerning the management of particularly rare tumors.

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