Sphincterotomy of sphincter of Oddi is performed at:: (A) 3 o'clock position, (B) 6 o'clock position, (C) 9 o'clock position, (D) 11 o'clock position
Answer is D. TRANSDUODENAL SPHINCTEROPLASTY This cut is made superiorly (at the 11'o clock position) for 4 to 5 mm. The sphincter is incised at the 11-O'clock position to avoid injury to the pancreatic duct.