Secondary Oxalosis

Secondary Oxalosis

Lynn D. Cornell, MD

Oxalosis and chronic renal failure developed 1 year after gastric bypass surgery in a 69-year-old woman (Cr 2.7 mg/dL). Focal interstitial fibrosis and tubular atrophy image, along with calcium oxalate crystals, are evident.

Oxalate crystals are easily appreciated with polarized light, as shown here in a biopsy performed for chronic renal failure after gastric bypass.



  • Oxalate nephropathy

  • Oxalosis


  • Deposition of excessive calcium oxalate within kidney parenchyma due to excessive intake or decreased excretion


Increased Blood Oxalate Levels

Jul 7, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Secondary Oxalosis

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