[A severe course of struvite stones in the upper and lower urinary tract of a 52-year-old man].

A 52-year-old man with flank pain on the right side presented to the emergency room. A computer tomography of the abdomen showed a right ureterolithiasis with 3.5 mm stone in the proximal ureter with consecutive grade 2 hydronephrosis. After standard treatment of the right ureterolithiasis, there was a relapse on the left side and throughout the entire upper and lower urinary tract with struvite stones due to a persistent infection with Proteus mirabilis.