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Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Mar 21, 2012; 18(11): 1191-1201
Published online Mar 21, 2012. doi: 10.3748/wjg.v18.i11.1191
Figure 6
Figure 6 The pseudovein sign in gastrointestinal hemorrhage. A: Superior mesenteric artery arteriogram shows a branching contrast collection (black arrows), overlying the gastric air shadow. The collection has the appearance of a vascular structure such as a vein; B: A later image in the arterial injection shows that the collection (black arrowhead) has a more amorphous appearance, and represents extravasation. The former appearance is an example of the “pseudovein sign”.