Clinical Research Directory

Inclusion Criteria: * Cases : * All cases of idiopathic aortitis and retroperitoneal fibrosis followed in participating centers over the past 15 years will be collected. * Witnesses : * Group 1: non-idiopathic inflammatory aortitis: all cases of inflammatory aortitis (apart from idiopathic aortites and isolated retroperitoneal fibrosis) followed in the participating centers over the last 15 years will be collected. * Group 2: subjects with noninflammatory aortic disease, atheromatous type or annulo-ectasitic disease, matched by age and sex with cases. This group will be used to define the differential characteristics between idiopathic aortitis and noninflammatory aortic pathology. * Group 3: This group will include control subjects aimed at defining radiological normality criteria according to age and sex. As the images are machine-dependent, group 3 controls will be randomly selected from the radiology departments that have performed the scanner or MRI of the corresponding control. Exclusion Criteria: * Patients under 18 years of age