oxalosis

rare inborn error of metabolism (autosomal recessive)

excessive amounts of oxalic acid combine with calcium and deposit throughout the body (kidney, soft tissue, bone)
early death in childhood

findings:

"secondary hyperoxaluria" or enteric hyperoxaluria

secondary to disturbance of bile acid metabolism: i.e., s/p jejunal bypass, ileal resection, blind loop syndrome, Crohn's, increased ingestion of green leafy vegetables, pyridoxine deficiency, etc.