Calyceal diverticular stones: Does the insistence on less invasive technique keep the patient away from a major complication?

Calyceal diverticular stones are rare clinical entities without a clearly defined consensus on the treatment. Treatment indicationsinclude recurrent urinary tract infections, chronic pain and renal impairment. modality of surgical approach is usuallybased location calyceal diverticulum.A 23-year-old woman was presented with stone 16.5 mm. Her medical history revealed multiple tractinfections caused by extended spectrum beta-lactamase (ESBL)-producing Escherichia coli which predicted to be thereason. The patient treated ureterorenoscopically, decision taken intra-operatively.In conclusion, insisting performing nephroscopy following an intra-operative retrograde pyelography no apparentostium could interpreted as ureterorenoscopic retriaval would fail development postoperative bacteremia despite allprecautions pre-and intra-operatively were two lessons indicating that all efforts must exercised reach most minimalinvasive method for treatment stones.