PDF(Pubmed)
Abstract：
BACKGROUND: Hepatic alveolar echinococcosis (HAE), as a benign parasitic disease with malignant infiltrative activity, grows slowly in the liver, allowing sufficient time for collateral vessels to emerge in the process of vascular occlusion.
METHODS: The portal vein (PV), hepatic vein and hepatic artery were observed by enhanced CT and the inferior vena cava (IVC) by angiography, respectively. Analysis of the anatomical characteristics of the collateral vessels helped to look into the pattern and characteristics of vascular collateralization caused by this specific etiology.
RESULTS: 33, 5, 12 and 1 patients were included in the formation of collateral vessels in PV, hepatic vein, IVC and hepatic artery, respectively. PV collateral vessels were divided into two categories according to different pathways: type I: portal -portal venous pathway (13 cases) and type II: type I incorporates a portal-systemic circulation pathway (20 cases). Hepatic vein (HV) collateral vessels fell into short hepatic veins. The patients with IVC collateral presented with both vertebral and lumbar venous varices. Hepatic artery collateral vessels emanating from the celiac trunk maintains blood supply to the healthy side of the liver.
CONCLUSIONS: Due to its special biological nature, HAE exhibited unique collateral vessels that were rarely seen in other diseases. An in-depth study would be of great help to improve our understanding related to the process of collateral vessel formation due to intrahepatic lesions and its comorbidity, in addition to providing new ideas for the surgical treatment of end-stage HAE.
METHODS: The portal vein (PV), hepatic vein and hepatic artery were observed by enhanced CT and the inferior vena cava (IVC) by angiography, respectively. Analysis of the anatomical characteristics of the collateral vessels helped to look into the pattern and characteristics of vascular collateralization caused by this specific etiology.
RESULTS: 33, 5, 12 and 1 patients were included in the formation of collateral vessels in PV, hepatic vein, IVC and hepatic artery, respectively. PV collateral vessels were divided into two categories according to different pathways: type I: portal -portal venous pathway (13 cases) and type II: type I incorporates a portal-systemic circulation pathway (20 cases). Hepatic vein (HV) collateral vessels fell into short hepatic veins. The patients with IVC collateral presented with both vertebral and lumbar venous varices. Hepatic artery collateral vessels emanating from the celiac trunk maintains blood supply to the healthy side of the liver.
CONCLUSIONS: Due to its special biological nature, HAE exhibited unique collateral vessels that were rarely seen in other diseases. An in-depth study would be of great help to improve our understanding related to the process of collateral vessel formation due to intrahepatic lesions and its comorbidity, in addition to providing new ideas for the surgical treatment of end-stage HAE.
摘要：
背景：肝泡型包虫病（HAE），作为一种具有恶性浸润活动的良性寄生虫病，在肝脏中生长缓慢，在血管闭塞的过程中允许足够的时间让侧支血管出现。
方法：门静脉（PV），增强CT观察肝静脉和肝动脉，血管造影观察下腔静脉（IVC），分别。分析侧支血管的解剖特征有助于研究由该特定病因引起的血管侧支的模式和特征。
结果：33、5、12和1例患者包括在PV侧支血管的形成中，肝静脉,IVC和肝动脉,分别。PV侧支血管根据不同的途径分为两类：I型：门静脉-门静脉途径（13例）和II型：I型包含门静脉-全身循环途径（20例）。肝静脉（HV）侧支血管落入短肝静脉。IVC侧支患者同时出现椎管和腰椎静脉静脉曲张。从腹腔干发出的肝动脉侧支血管维持肝脏健康侧的血液供应。
结论：由于其特殊的生物学性质，HAE表现出独特的侧支血管，在其他疾病中很少见。深入研究将有助于提高我们对由于肝内病变及其合并症引起的侧支血管形成过程的理解，为终末期HAE的手术治疗提供新思路。
方法：门静脉（PV），增强CT观察肝静脉和肝动脉，血管造影观察下腔静脉（IVC），分别。分析侧支血管的解剖特征有助于研究由该特定病因引起的血管侧支的模式和特征。
结果：33、5、12和1例患者包括在PV侧支血管的形成中，肝静脉,IVC和肝动脉,分别。PV侧支血管根据不同的途径分为两类：I型：门静脉-门静脉途径（13例）和II型：I型包含门静脉-全身循环途径（20例）。肝静脉（HV）侧支血管落入短肝静脉。IVC侧支患者同时出现椎管和腰椎静脉静脉曲张。从腹腔干发出的肝动脉侧支血管维持肝脏健康侧的血液供应。
结论：由于其特殊的生物学性质，HAE表现出独特的侧支血管，在其他疾病中很少见。深入研究将有助于提高我们对由于肝内病变及其合并症引起的侧支血管形成过程的理解，为终末期HAE的手术治疗提供新思路。
