Giant bladder stone in a male patient

BACKGROUND In recent years, bladder stones are increasing in China. However, a giant bladder stone is rarely found nowadays. METHODS A case of a 54-year-old man who presented with a >9-year history of urinary frequency and urgency and macrohematuria for the past 3 days, was examined by ultrasound scan, kidney-ureter-bladder x-ray, and computed tomography. Then, the patient received a cystolithotomy. RESULTS His suprapubic area was hard when palpated. An ultrasound scan showed hydronephrosis of both kidneys and expanded ureters. A kidney-ureter-bladder x-ray showed a large stone within the bladder, and computed tomography revealed that the stone occupied most of the bladder. A large bladder stone composed of magnesium ammonium phosphate, weighing 1048 g, and measuring 13.3*8.0*9.7cm in size was removed. CONCLUSION This rare case is, to the best of our knowledge, the largest bladder stone case reported to date in China. For patients with only Lower urinary tract symptoms, bladder stone should be taken into consideration when other signs occur, such as recurrent urinary tract infection and hematuria.