| A rare autoinflammatory disease and form of mevalonate kinase deficiency (MKD), characterized by periodic attacks of fever and a systemic inflammatory reaction (cervical lymphadenopathy, abdominal pain, vomiting, diarrhea, arthralgia and skin manifestations). The disease usually begins in the first year of life and rarely after 5 years of age. HIDS is an inherited syndrome caused by mutations in the mevalonate kinase (MVK) gene (12q24). These MVK mutations lead to reduced, but not abolished enzyme activity. This in turn leads to impaired control of the production of inflammatory mediators, which in turn cause inflammatory (fever) attacks. The disease follows an autosomal recessive pattern of inheritance. |