[Post-surgical spindle cell nodule in kidney pelvis].

INTRODUCTION

The postoperative spindle cell nodule of the urinary tract is a being proliferative lesion similar to sarcoma in the microscopic exam. We present a case of modulein renal pelvis location.

CASE: A woman presenting a stag horn lithiasis in left kidney was treated by LOC and percutaneous nephroscopy. Because of the large size of the stone a second intervention was required four weeks later. Then we discovered a 2 cm exophytic lesion in renal pelvis and removed it easily with a forceps.

DISCUSSION: This kind lesion belong to the group of iatrogenic inflammatory pseudotumours, which are secondary to an injury that leads to a tissular repairing response. Differential diagnostic includes sarcomas.

CONCLUSION

It is important that Urology and pathology specialist think of this tumour in patients having a recent surgical intervention. A mistake in the diagnosis would lead us to an unnecessary radical surgery.