Development and Progression of Carcinoid Heart Disease in a Cohort of Adult Patients With Neuroendocrine Tumors

Inclusion Criteria: * Patients over 18 years * Patients followed in a NeuroEndocrine Tumor center with a reference cardiologist * Patient with: * Histologically documented metastatic well-differentiated ileum neuroendocrine tumor or * Histologically documented metastatic well-differentiated bronchial neuroendocrine tumor, or * Histologically documented well differentiated neuroendocrine tumor, regardless of the primitive site or unknown primitive site and presenting a carcinoid syndrome and / or an elevation of urinary 5HIAA \> 2 fold the upper limit of normal range * Information given to the patient and his documented non-opposition Exclusion Criteria: * Poorly differentiated neuroendocrine carcinoma * Patient unable / unwilling to follow the cardiac monitoring recommended by good practice data * Any medical, geographical, sociological, psychological or legal situation that does not allow the patient to complete the study