renal calculi

• common:
  • calcium phosphate (8%)
  • calcium oxalate (most common: 73%, most opaque)
  • magnesium ammonium phosphate ("struvite")

• uncommon:
  • diammonium calcium phosphate
  • magnesium phosphate

• rare:
  • cystine (faintly opaque; 1%)
  • urate (lucent; 7%)
  • xanthine

© 2002, C.E. Kahn, Jr.
2002-04-18