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Fig. 4. Diagram shows connections between esophageal and paraesophageal varices via perforating veins with afferent or efferent blood flow. Paraesophageal varices are formed by union of groups of dilated perforating veins, and varices connect with left gastric veins inferiorly and with azygos vein superiorly. Throughout their length, esophageal varices form connections with paraesophageal varices via perforating veins.





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