GORE® TAG® Thoracic Endoprosthesis French Mandatory Registry

Inclusion Criteria: * Patient where a GORE® TAG® or Conformable GORE® TAG® Thoracic Endoprosthesis is implanted (successfully or not) for the treatment of disease of the descending thoracic aorta. * Patient who had previously consented to the collection and processing of personal medical data. * Patient older than 18 years at the time of treatment. Exclusion Criteria: * Patients who have already received treatment with a thoracic endoprosthesis other than the GORE® TAG® or Conformable GORE® TAG® Thoracic Endoprosthesis and for whom 'revision' or reintervention is required. * Patients whose clinical follow-up is not possible (i.e. patients who cannot return for control visits because they live abroad).