Spontaneous rupture of renal pelvis as a rare complication of ureteral lithiasis.

Spontaneous rupture of renal pelvis with urine extravasation is a rare condition and usually associated with obstructing ureteric calculus. It poses diagnostic and therapeutic dilemmas, while a stepwise approach for the confirmation of diagnosis, treatment and follow up is needed. We present a case of a 75-year old male patient who had a renal pelvis rupture with perirenal extravasation of urine due to a 4 mm stone located at the right ureterovesical junction.