<prompt> A female patient presented with left iliac fossa pain for the past 6 months. On investigation, a 3 cm left renal pelvic stone was found with no hydroureteronephrosis, normal functioning kidneys on both sides and no distal obstruction. The ideal management would bePercutaneous nephrolithotomy PCNLExtra-corporeal shock wave lithotripsy ESWLLaparoscopic nephrolithotomyMedical dissolution therapy with oral potassium citrate  <response>: Ans. a. Percutaneous nephrolithotomy 