Surgery General 0b98d32c 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 High-Yield Explanation The clinician is able to judge the position of the stone by the history of pain -