Fluorescence Image Guided Foregut Surgery

Inclusion Criteria: * Man or woman over 18 years old. * Patient with resectable primitive esophageal or gastric cancer confirmed by biopsy without distant metastases * Patient with no contraindications to anaesthesia and performance of esophageal and/or gastric surgery * Patient able to receive and understand information related to the study and give written informed consent. * Patient affiliated to the French social security system. Exclusion Criteria: * Patient undergoing emergency surgery (hemorrhage, occlusion or perforation). * Presence of distant metastasis * Patient at risk of allergy to indocyanine green or to other fluorescent compounds * Pregnant or lactating patient. * Patient in exclusion period (determined by a previous or a current study). * Patient under the protection of justice. * Patient under guardianship or trusteeship. * Patient deprived of liberty