Institutional Registry of Rare Diseases

This is a registry study that collects data on patients with rare diseases who are being treated at Hospital Italiano de Buenos Aires in Argentina. It is designed to help researchers better understand how these rare conditions behave and respond to treatment over time. **You may be eligible if...** - You have been diagnosed with any of a range of rare diseases, including amyloidosis, sarcoidosis, Gaucher disease, pulmonary hypertension, hereditary angioedema, multiple endocrine neoplasia, Wilson disease, Cushing syndrome, Prader-Willi syndrome, and others - You are currently being followed at Hospital Italiano de Buenos Aires **You may NOT be eligible if...** - You refuse to participate or do not wish to go through the informed consent process - You are not a patient at Hospital Italiano de Buenos Aires Talk to your doctor to see if this trial is right for you.