CTICasesOutflow Tract Ventricular Septal Defect with Anomalous Pulmonary Artery Branch
[...]. Outflow Tract Ventricular Septal Defect with Anomalous Pulmonary Artery Branch. CTICases. Published May 31, 2018. https://str-case-explorer.pages.dev/c/zn3zf
Imaging findings
An outflow tract ventricular septal defect is partially obscured by a sinus of Valsalva aneurysm. The left pulmonary arterial supply is unusual: one branch arises anteriorly in its normal location, while a second branch takes a posterior course, remaining anterior to the esophagus so that it does not constitute a true pulmonary artery sling, arising more distally from the right or main pulmonary artery and supplying the left lower lobe.
Key takeaways
This case illustrates an unusual dual origin and course of pulmonary arterial supply to the left lung occurring together with an outflow tract ventricular septal defect and a sinus of Valsalva aneurysm, a combination the presenters had not previously encountered.
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