A RARE CAUSE OF HEMATURIA- PRIMARY HYPEROXALURIA

A RARE CAUSE OF HEMATURIA- PRIMARY HYPEROXALURIA A 9 year old male child presented with episodic, painless, gross haematuria with two similar episodes in the past. Similar history of renal calculi in the mother was present. After ruling out causes of gross haematuria like UTI, IgA nephropathy etc second line investigations were sent. Opthalmological examination showed oxalate crystals in the retina. 24 hour urinary oxalate levels showed borderline elevation. No other features of systemic oxalosis were seen. A therapeutic trial of sodium bicarbonate and pyridoxine was given. Child showed dramatic improvement with macroscopic clearance in 4 days and microscopic clearance in 2 weeks. This case is presented for its rarity and isolated retinal crystals and haematuria without systemic oxalosis