Locate the renal stone with pain radiating to medial side of thigh and perineum due to slipping of stone in males: (A) At pelvic brim, (B) Intramural opening of ureter, (C) Junction of ureter and renal pelvis, (D) At crossing of gonadal vessels and ureter
Answer is A. The clinician is able to judge the position of the stone by the history of pain - Ref : S. Das manual, 4/e p408