Fig. 1From: Neuroendocrine tumor of the ampulla of Vater with distant cystic lymph node metastasis: a case reportUpper gastrointestinal endoscopy shows a bulging papilla with bleeding on day 1 (a) and shows an approximately 10-mm mass of the ampulla of Vater with a superficial ulcer on day 7 (b). Upper gastrointestinal series shows an ampullary mass (arrow) (c)Back to article page