<prompt> Stone seen in urinary tract infection is ?Calcium oxalateUric acid stonesStaghorn calculusCysteine stones  <response>: Ans. is c i.e., Staghorn calculusUrolithiasis :?Calcium Oxalate stones - associated with hypercalcemia and hypercalciuriaStaghorn Calculi - Large Magnesium ammonium phosphate stones formed in patients with infection of urine splitting organisms Proteus and some staphylococci followed by precipitation in alkaline urine. Uric acid stones - Patients with hyperuricemiaCystine stones - Genetic defect in renal reabsorption of cytine leading to cystinuria. 