Porto-pulmonary venous anastomosis in portal hypertension demonstrated by percutaneous transhepatic cine-portography.
Analysis of portal collaterals by percutaneous transhepatic portography combined with cine-fluorography disclosed porto-pulmonary venous anastomosis in four out of 22 patients with portal hypertension. The characteristic radiological features were a sudden spurt of contrast medium from a venous collateral located near the hilus of the left lung and counterclockwise movement of the flux of contrast medium, which was rapidly diluted; this was synchronized with the cardiac beat. The clinical significance of the porto-pulmonary anastomosis as a potential channel for the migration of embolizing materials used in the obliteration of varices is discussed.
D000328:Adult; D002933:Cineradiography / Q000379:methods*; D003097:Collateral Circulation; D005119:Extravasation of Diagnostic and Therapeutic Materials; D005402:Fistula / Q000000981:diagnostic imaging*; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011168:Portal System / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D011169:Portal Vein / Q000000981:diagnostic imaging; D011667:Pulmonary Veins / Q000000981:diagnostic imaging