Interest of MRI in Preoperative Staging for the Laryngeal and Hypopharyngeal Cancer

Inclusion Criteria: * Patient ≥18 years old * Patient with a laryngeal or hypopharyngeal cancer at any stage * Patient eligible for a surgical treatment in multidisciplinary consultation * Patient who did not oppose its participation to the study * Indication for performing an MRI in addition to CT at the discretion of the investigator Exclusion Criteria: * Patient with an ASA ("American Society of Anesthesiologists", international anesthesia classification) score ≥ 3, * Patient with a chirurgical contraindication * Patient with a MRI contraindication * Pregnant or nursing woman * Adult requiring protection (guardianship, supervision) * Patient participating in interventional research (Excluding physiological studies and interventional research involving only minimal risks and constraints that do not interfere with the analysis of the primary outcome).