MSFinals-6727

A 45-year-old accountant presents with right upper quadrant pain and abnormal liver function tests. An ultrasound scan reveals a dilated common bile duct. The patient undergoes an endoscopic retrograde cholangiopancreatography (ERCP) procedure. During the procedure, the consultant asks you to identify the location of the Ampulla of Vater, which is cannulated. Can you tell me where the Ampulla of Vater enters the bowel?