Fig. 5From: Giant urethral calculus in anterior urethral diverticulum: a case reportUrethral calculus was removed after the lithotripsy, the metric rulers within unit of centimeter (e.g. number 8 means 8 cm in length) indicate a) the estimate size of stone after break-down, and b) the estimated volume of shredded calculus was calculated as 100 mLBack to article page