case_images: PMC11233816_01
case_images: Preoperative Imaging Examination (A,B) CT imaging shows the superior mesenteric artery, fistula, and dilated superior mesenteric vein. (C) Three-Dimensional CT imaging shows the superior mesenteric artery, fistula, and dilated superior mesenteric vein.
case_images: fcvm-11-1414395-g001.jpg
case_images: PMC11233816_01_fcvm-11-1414395-g001.jpg
case_images: F1
case_images: Computed tomography vascular reconstruction and angiography depicted abnormal arteriovenous flow and dilation of the superior mesenteric vein (Figure 1).
case_images: Digital subtraction angiography of endovascular procedure. (A,B) Baseline angiography. (C) Two Interlock coils were inserted for embolization. (D) Two more Interlock coils were inserted for embolization. (E) A covered stent was inserted. (F) Angiographic imaging at the end of the procedure.
case_images: fcvm-11-1414395-g002.jpg
case_images: PMC11233816_01_fcvm-11-1414395-g002.jpg
case_images: F2
case_images: The superior mesenteric vein exhibited abnormal dilation, measuring approximately 20 mm in diameter (Figures 2A,B). Scientific, USA) were sequentially deployed, resulting in partial relief of the fistula while maintaining patency (Figures 2C,D). Subsequently, a 7 Fr, 55 mm long sheath (Cook, Bloomington, USA) was repositioned, and the fistula was covered with a 5-60 mm Viabahn stent (Gore, Newark, USA) (Figure 2E). The distal and proximal ends of the stent were sequentially expanded using a 5-60 mm balloon (Cook, Bloomington, USA) (Figure 2E). Super-selective angiography revealed small branches of the superior mesenteric artery, with no evident shunt from the superior mesenteric artery to the superior mesenteric vein (Figure 2F).