Silicate urolithiasis in a paediatric patient.

Silicate urolithiasis is rare in humans (0.2%) but common in herbivorous animals. We report a previously unreported instance in India where a pediatric patient with renal pelvic calculus who underwent percutaneous nephrolithotomy was found to have silicate urolithiasis on stone analysis. Retrospective analysis did not reveal any risk factors associated with silicate stone formation.