Thrombosis of the <a href="https://en.wikipedia.org/wiki/Superior_vena_cava" class="extiw" title="en:Superior vena cava">superior vena cava</a>, as well as proximally in both of the <a href="https://en.wikipedia.org/wiki/brachiocephalic_veins" class="extiw" title="en:brachiocephalic veins">brachiocephalic veins</a>, causing <a href="https://en.wikipedia.org/wiki/Superior_vena_cava_syndrome" class="extiw" title="en:Superior vena cava syndrome">superior vena cava syndrome</a>.
Raj Parikh, Janice Stanley, Rajive Tandon
CC BY 4.0
<cite style="font-style:normal"> (2016). "Superior Vena Cava Syndrome Masquerading as Angioedema". <i>Journal of Intensive and Critical Care</i> <b>02</b> (02). <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.21767/2471-8505.100024">10.21767/2471-8505.100024</a>. <a href="https://en.wikipedia.org/wiki/International_Standard_Serial_Number" class="extiw" title="en:International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="https://www.worldcat.org/issn/24718505">24718505</a>.</cite>