JEJUNOILEAL BYPASS, ENTERIC HYPEROXALURIA, AND OXALATE NEPHROSIS - A ROLE FOR POLARIZED-LIGHT IN THE RENAL BIOPSY

Enteric hyperoxaluria, a complication of jejuno-ileal bypass, is assoc iated with renal failure owing to oxalate nephrosis or tubulo-intersti tial nephritis. A 54 year old woman developed renal failure 17 months after jejuno-ileal bypass for morbid obesity. Renal biopsy showed wide spread acute on chronic damage to the tubulointerstitial compartment w ith extensive deposition of oxalate crystals. The extent of oxalate de position was only evident on polarisation of the biopsy.