superior vena cava syndrome
noun
: 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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“Superior vena cava syndrome.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/superior%20vena%20cava%20syndrome. Accessed 3 Nov. 2025.
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