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Fig. 2 | CVIR Endovascular

Fig. 2

From: Long-term efficacy and risk factors for stent occlusion in portal vein stent placement: a multi-institutional retrospective study

Fig. 2

A patient with residual stenosis (outside-stent) which resulted in stent occlusion. A man in his 60 s presented with melena two months after subtotal stomach-preserving pancreatoduodenectomy for ampullary cancer. The contrast enhancement of the portal vein (PV) to superior mesenteric vein (SMV) was unclear and considered to be an occlusion or severe stenosis. Late-onset pancreatic juice leakage was considered as a cause. PV stent placement and total pancreatectomy (to control pancreatic juice leakage) was planned emergently. A Portography shows PV stenosis (arrow). Two stents (SMART Control; Cordis, Hialeah, FL, USA) were placed through the PV and post-stent balloon dilatation was performed up to the nominal pressure. Stent placement was not performed for SMV because it was unrecognized (dotted arrow). After the stent placement, PV flow improved. Subsequently, residual total pancreatectomy was performed. B Contrast-enhanced CT six days after the stent placement (arrow). The contrast enhancement of the SMV on the caudal side of the stent is unclear (dotted arrow). Two years and three months after placement, the stent occluded

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