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Radiology, Vol 144, 499-504, Copyright © 1982 by Radiological Society of North America

ARTICLES

Obstruction of the superior vena cava or its major tributaries demonstrated by bolus-injection excretory urography

WE Drane, AC Watt and DS Marks

Three cases in which venous obstruction in the thorax was demonstrated by visualization of collateral circulation during bolus-injection excretory urography are presented. Visualization of these collateral vessels is highly suggestive of venous obstruction even if this condition is clinically unsuspected. The diagnosis may be confirmed by radionuclide venography, which is easily performed and noninvasive, and allows determination of the level of obstruction, as well as the degree of collateral flow.




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