Review
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastrointest Endosc. May 16, 2014; 6(5): 156-167
Published online May 16, 2014. doi: 10.4253/wjge.v6.i5.156
Figure 1
Figure 1 Intraductal ultrasound reveals a gallstone (labeled gallstone) in the common bile duct exhibiting acoustic shadowing (3 parallel arrows) in a middle-aged female patient presenting acutely with right upper quadrant pain, hyperbilirubinemia, and elevated aspartate and alanine aminotransferase levels. During pregnancy, endoscopic ultrasound provides a method to diagnose common bile duct stones without exposing the fetus to the risks of ionizing radiation from endoscopic retrograde cholangiography. US probe: Ultrasound probe; GS: Gallstone.