Diffuse nephrocalcinosis and idiopathic renal hypercalciuria.

Area of Science:

• Pediatric Nephrology
• Medical Research
• Clinical Case Study

Background:

• Primary nocturnal enuresis is common in children.
• Nephrocalcinosis involves calcium deposits in the kidneys.
• The etiology of nephrocalcinosis can be diverse, but idiopathic hypercalciuria is rarely implicated.

Observation:

• A 12-year-old boy presented with primary nocturnal enuresis.
• Extensive bilateral nephrocalcinosis was discovered without an apparent cause.
• Diagnostic tests confirmed persistent, severe renal hypercalciuria.

Findings:

• The study identified idiopathic hypercalciuria as the cause of nephrocalcinosis.
• This represents the first reported case of idiopathic hypercalciuria causing nephrocalcinosis in a child.
• Renal hypercalciuria was confirmed via intravenous calcium infusion.

Implications:

• This case broadens the differential diagnosis for pediatric nephrocalcinosis.
• It highlights the importance of investigating hypercalciuria in children with unexplained kidney calcifications.
• Further research may elucidate the mechanisms linking idiopathic hypercalciuria to nephrocalcinosis in pediatric populations.