A stone measuring 0.4 cm, blocking the outlet of renal pelvis resulting in mild to moderate tract obstruction. Which of the following technique will be opted to remove this stone?
Correct answer: C. Extracorporeal Shock wave lithotripsy
- A. Kidney surgery
- B. Burring a hole and removing the stone manually (nephrolithotomy)
- C. Extracorporeal Shock wave lithotripsy
- D. None of these
Explanation
A 0.4 cm stone equals 4 mm, and a stone of this size causing mild to moderate obstruction is commonly treated by extracorporeal shock-wave lithotripsy, which fragments it without an incision. Nephrolithotomy is a more invasive procedure and may be selected for larger or otherwise difficult stones, so choosing it over lithotripsy ignores the small stone size.
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