Portal venous system as a major collateral in iliac and inferior vena caval obstruction.
D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D003097:Collateral Circulation; D005260:Female; D006801:Humans; D007084:Iliac Vein / Q000000981:diagnostic imaging*; D008642:Mesenteric Veins / Q000000981:diagnostic imaging; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000000981:diagnostic imaging; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011859:Radiography; D002583:Uterine Cervical Neoplasms / Q000000981:diagnostic imaging; D014652:Vascular Diseases / Q000000981:diagnostic imaging; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*