Persistant left superior vena cava (PLSVC) is the most common congenital venous anomoly of the thoracic region, found in 0.3%-0.5% of the population. The left brachiocephalic vein does not develop fully, and the head and neck drain into the right atrium. Here is a patient with CCSVI and this malformation, who is successfully treated with venoplasty.


Percutaneous transluminal angioplasty in a patien... [Phlebology. 2012] - PubMed - NCBI
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