Renal Artery Fibromuscular Dysplasia Registry

Inclusion Criteria: 1. Informed consent; 2. Patients diagnosed with renal artery fibromuscular dysplasia (FMD), i.e. at least one string-of-beads (multifocal FMD) or focal stenosis (focal FMD). The diagnosis needs to be confirmed by at least one of the following imaging modalities: CT-angiography, MR-angiography or catheter-based angiography; 3. Patients with so-called "atypical renal artery FMD" or "renal artery FMD-like presentation", i.e. patients presenting with at least one dissection or 2 aneurysms \< 60-year-old, in the absence string-of-beads, focal stenosis or evidence of inherited arteriopathy; 4. Patients with established renal artery FMD younger than 18 years, without evidence of underlying syndromes such as Williams syndrome, Alagille syndrome or type 1 Neurofibromatosis; Exclusion Criteria: 1\. Not eligible for inclusion or in situations considered unqualified for the study by the investigator;