Portal hypertension induced by congenital hepatic arterioportal fistula: Report of four clinical cases and review of the literature

Figure 1 Contrast-enhanced computed tomography revealed an earlier enhancement of the portal vein compared with the superior mesenteric vein during the arterial phase. Digital subtraction angiography indicated that there was rapid filling through the fistula into the portal vein. A: Early enhancement of the portal branches in hepatic arterial-phase; B, C: The hepatic argiography; D: The fistula reduction after embolization.

Figure 2 Digital subtraction angiography before embolization revealed the arteriovenous fistula with the immediate filling of the portal venous radicles.

Figure 3 Early enhancement of the portal branches.

Figure 4 Digital subtraction angiography revealed a diffuse arterioportal fistula with flow reversal in the portal venous system.