Cardiovascular Variation 1

Question 1

Double SVC

23yo m with widened mediastinum on CXR was noted to be fit with no symptoms, BP along both arms were equal and normal

Answer 1

Singh et al., (2005)

Question 2

Duplicated IVC
72yo m found on dissection to have 2 IVC uniting around L1, R renal vein drained into R IVC as normal and L renal vein drained into L IVC, as did the L supra-renal vein
L testicular vein also duplicated

Answer 2

Natsis et al., (2010)

Question 3

Anomalous vessel (origin)
Superior thyroid may branch from the common carotid in as much as 18%

Answer 3

Al-Rafiah et al., (2011)

Question 4

Venous embryology
Can be mistaken for lymphatics
Strong association between venous anomalies and thrombosis - interruption/ agenesis of the IVC may be see in as much as 5% of children with DVT

Answer 4

Gil et al., (2006)

Question 5

Retro-aortic left renal vein appearing as a suspicious mass
Interrupted IVC can also cause thrombosis issues as forces blood through vessels at volumes they were not designed to sustain

Answer 5

Cizinger et al., (2007)