superior vena cava syndrome


: a condition characterized by elevated venous pressure of the upper extremities with accompanying distension of the affected veins and swelling of the face and neck and caused by blockage (as by a thrombus or an aneurysm) or compression (as by a tumor) of the superior vena cava

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Cite this Entry

“Superior vena cava syndrome.” Medical Dictionary, Merriam-Webster, Accessed 4 Dec. 2023.

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