Scleroatrophic gallbladder with dilated cystic duct and stones that have already passed to CBD.
Cannulation of ampulla of Vater.
Endoscopic visualization of the ampulla of Vater. A transverse fold of mucosa overlying the ampulla is frequently seen, as shown here.
View of the proximal duodenum.
View of pylorus. Bubbles indicating bile provide a clue to the location of the distal stomach when orientation of the side-viewing endoscope is difficult.