This case report highlights a collateral pathway of systemic to pulmonary venous communication in superior vena caval syndrome.
May alert to anomalous shunts in SVC syndrome venography; leaves open prevalence and clinical relevance.
A case of superior vena caval obstruction due to bronchogenic carcinoma is presented. Upper extremity venography demonstrated shunting of contrast media from systemic veins to the right pulmonary veins. This collateral pathway has been previously described in the superior vena caval syndrome. A proposed mechanism for this flow pattern is discussed.
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Wilson Es (1976) studied this question.
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