Case Report: A renal wasting disease caused by a pure deletion of nephrocystin-1

Nephronophthisis is an autosomal recessive disorder associated with the tubular interstitium of the kidney, and can lead to renal failure in children and adolescents. Mutations in the gene encoding nephrocystin-1, <i>NPHP1</i>, are frequently associated with the disease. Here, we describe the case of a child who presented to the clinic with febrile convulsions and who was ultimately diagnosed with nephronophthisis caused by a homozygous deletion of the <i>NPHP1</i> gene. Alerting pediatricians to the recognition of atypical renal wasting disease and reclarifying the diagnostic value of genetic diagnosis for this disease.