Monday, 6 October 2014

Types of Kidney Stones

Posted by iqbal khatri  |  at   18:41 No comments

Multiple Kidney Stones

There are many types of kidney stones.

1. Calcium Oxalate Calculi.

  •  75%
  • Occur in alkaline urine
  • Called Mulberry stones
  • With sharp projections
  • Cause bleeding
  • Often black due to altered blood on their surface
  • Symptomatic even when small

Calcium Oxalate Calculus Pic 1
Calcium Oxalate Calculus Pic 1

Calcium Oxalate Calculus Pic 2
Calcium Oxalate Calculus Pic 2

X-Ray KUB Showing Renal Stones
X-Ray KUB Showing Renal Stones

2. Phosphate Calculi.

  • 15%
  • Occur in strongly alkaline urine
  • Commonly occur against a background of chronic urinary infection
  • Usually compounds of magnesium, ammonium and calcium phosphate
  • Surface is smooth
  • Dirty white in colour
  • May grow rapidly & fill the calyceal system of kidney taking on their shape ( Staghorn calculi)
  • Also called struvite calculi

 Phosphate Calculi
 Phosphate Calculi

Staghorn Calculus
Staghorn Calculus

3. Uric Acid Calculi

  • 5%
  • Occur in acid urine
  • Due to a consequence of high level of uric acid in urine
  • Hard in consistency
  • Surface is smooth
  • Light brown in colour
  • Radio logically translucent

4. Cystine Calculi

  • 2%
  • Relatively rare
  • Occur in acid urine
  • Usually multiple
  • White in colour
  • Extremely hard in consistency, so difficult to treat
  • Metabolic origin (Decreased reabsorption of cystine from the renal tubules)

5. Xanthine and Pyruvate Calculi

  • 1%
  • Rare
  • Inborn error of metabolism is cause.


About the Author

I am a General Surgeon, working at Mirpurkhas city Sindh Province of Pakistan. This blog defines my passion, Various Surgical Diseases are explained in detail. If anyone need any assessment about there discuss topics then contact me through "Contact Page".

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