Surgery General 48c51d4e Not true about PUJ obstruction is - A Retrograde pyelography is useful to locate the site of obstruction B Endoscopic pylotomy is contraindicated C Whittakar test is of clinical significance D Dismembered pyloplasty is the procedure of choice High-Yield Explanation Endoscopic approaches (such as endoscopic pyelotomy or ballon dilatation) are used for the repair of PUJ obstruction.