Mevalonate Kinase Deficiency as Cause of Periodic Fever in Two Siblings

Area of Science:

• Genetics
• Immunology
• Pediatrics

Background:

• Mevalonate kinase deficiency (MKD) is an autosomal recessive autoinflammatory disorder.
• Mutations in the MVK gene are the underlying cause of MKD.

Observation:

• Two siblings presented with recurrent febrile illnesses.
• Genetic testing identified compound heterozygous variants in the MVK gene in both siblings.

Findings:

• The identified MVK variants confirm the diagnosis of mevalonate kinase deficiency.
• The clinical presentation of recurrent fevers in the siblings is consistent with MKD.

Implications:

• MKD can mimic common pediatric conditions, necessitating its consideration in differential diagnoses.
• Early diagnosis of MKD is crucial for appropriate management and treatment.
• Understanding the genetic basis of MKD aids in diagnosing and managing affected families.