Morphologie, vol.90, pp.39-42, 2006 (Refereed Journals of Other Institutions)
Duplication of superior vena cava (SVC) is a rare anomaly. The incidence of double SVC in general population is 0.3% whereas in patients with congenital heart
disease it varies between 10-11%. Double SVC cases
have clinical importance if especially the one on the left
side drains into the left atrium. Moreover, double SVC is
surgically important in the presence of congenital heart
disease. In this article, we presented adult patients who
incidentally diagnosed with double SVC, one drained
into the right atrium while the other into the left atrium
and discussed the embryologic basis of these patent vessels