When renal sarcoidosis presents with elevated urine calcium or mildly elevated serum calcium that has not yet reached the threshold for aggressive intervention, and nephrolithiasis is absent, a defined first-line approach applies before escalation is considered.
This protocol addresses patients with renal sarcoidosis who have hypercalciuria or mild hypercalcemia — serum calcium at or below 11 mg/dL — and no current nephrolithiasis. The presence of elevated serum or urinary calcium in this range, without stone disease, defines the population for this initial management step.
The therapeutic target is a measurable reduction in urine calcium or serum calcium toward normal range.
Initial management centres on dietary and behavioural measures directed at reducing calcium load and supporting excretion — the complete structured regimen with specific guidance is available via the link below.
In isolated hypercalciuria, treatment may begin with a reduction in calcium intake, increased fluids and avoidance of sun.
Mild hypercalcemia may also be treated with a reduction in dietary calcium and increased fluid intake.