case_images: PMC3959499_01
case_images: (A) Endoscopic appearance of the ampulla of Vater, showing the fish-mouth sign (B) The ampulla of Vater is shown, extruding mucus
case_images: AnnGastroenterol-26-73-g001.jpg
case_images: PMC3959499_01_AnnGastroenterol-26-73-g001.jpg
case_images: F1