MVK and hyperinsulinemic hypoglycemia, familial, 4: The diagnoses included NLR family pyrin domain containing 3 (NLRP3)-related diseases (n = 12), tumor necrosis factor receptor-associated periodic syndrome (i.e., TRAPS, n = 9), familial Mediterranean fever (n = 3), mevalonate kinase deficiency (n = 2), undifferentiated systemic AIDs (n = 5), and Schnitzler syndrome (n = 5).