 Relatives of patients with autoinflammatory diseases or healthy volunteers may be included for genetic testing. The genetic evaluations will be conducted in collaboration with Dr. Fleisher s laboratory at the Clinical Center laboratory and other groups. See genetics consent form. We may also collect blood for serum and RNA analyses to establish a cohort of healthy controls that is matched in age, gender and ethnicity to the study patients. Skin biopsies for research may be requested from patients, patient relatives and healthy volunteers 