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World J Gastrointest Oncol. Apr 15, 2023; 15(4): 632-643
Published online Apr 15, 2023. doi: 10.4251/wjgo.v15.i4.632
Figure 1
Figure 1 Illustrated view of portal vein sampling with an endoscopic ultrasonography-fine needle aspiration needle. Circulating tumor cells (CTCs) from pancreatic cancer are released in the portal vein; portal blood sampling before passage in the liver can allow for improvement of the CTC recovery rate. The endoscopic ultrasonography-fine needle aspiration needle is advanced transhepatically into the portal vein and portal venous blood can be aspirated safely.