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. 2022 May 30;9:834466. doi: 10.3389/fsurg.2022.834466

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Copyright © 2022 Zheng, Yu, Peng, Zhang, Shen, Feng, Huang, Zhou, Zhang and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The formation incident of portal vein system thrombosis. 1. Mesenteric vein thrombosis (MVT): gray-scale b-ultrasound image reveals hypoechoic thrombosis within the lumen, and color Doppler ultrasound shows a filling defect in the inferior mesenteric vein (IMV) (arrows). 2. Splenic vein thrombosis: the gray-scale b-ultrasound image shows that splenic vein (SPV) behind the pancreas were filled with hypoechoic thrombus (arrows), and the lumen was blocked. 3. Portal vein thrombosis (PVT): the gray-scale b-ultrasound image demonstrates that the primary portal vein (PV) is closely full of hypoechoic thrombus (arrows), and the main portal vein is almost completely occluded.