To determine if MRI can detect preoperative invasion of cartilage by laryngeal and hypopharyngeal carcinoma, and to compare it to CT imaging and histopathology in excised larynges and/or hypopharynges.

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).

Patient with a laryngeal or hypopharyngeal cancer at any stage, with a doubt about cartilage invasion and eligible for surgical treatment.