Case Report
Copyright ©The Author(s) 2016.
World J Gastroenterol. Apr 7, 2016; 22(13): 3687-3692
Published online Apr 7, 2016. doi: 10.3748/wjg.v22.i13.3687
Figure 1
Figure 1 A duodenoscopic image showed an enlarged major papilla with central umbilication and fine nodularity on ampullary orifice (A), endoscopic ultrasonography at the major ampulla revealed a 1. 1 × 0.9-cm, slightly hypoechoic round ampullary mass confined to the submucosa without definite wall disruption or adjacent invasion (B).