title: Review of computed tomography findings in thrombosis of the major abdominal venous pathways.
abstract: Computed tomography is commonly the first diagnostic modality to detect venous thrombosis. The relatively constant location and anatomic relations of the major abdominal veins allow for their proper recognition and differentiation from other tubular structures. Whether the occlusion is secondary to blood clot or tumor extension, the vessels demonstrate a characteristic appearance. The presence of adjacent tumor mass is the single most important factor to differentiate the two types of thrombi. Invaluable aid is provided by computed tomography in the management of this clinical situation. Uncommonly, the diagnosis remains unclear and venography must be done. Selected examples of major abdominal venous thrombosis are presented.
mesh_terms: D000005:Abdomen / Q000098:blood supply*; D005268:Femoral Vein / Q000000981:diagnostic imaging; D006503:Hepatic Veins / Q000000981:diagnostic imaging; D006801:Humans; D007084:Iliac Vein / Q000000981:diagnostic imaging; D008642:Mesenteric Veins / Q000000981:diagnostic imaging; D011169:Portal Vein / Q000000981:diagnostic imaging; D012082:Renal Veins / Q000000981:diagnostic imaging; D013162:Splenic Vein / Q000000981:diagnostic imaging; D013927:Thrombosis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging