Correct!
1. Pulmonary angiography

There is an obvious vascular abnormality present on the thoracic CT scan. However, it is unclear what abnormality is present and pulmonary angiography is needed to further define the lesions.

Pulmonary angiography was performed (Figure 3).

Figure 3. Static views of the pulmonary angiogram with matching negative images.  

What abnormality is present on the pulmonary angiogram?

1. Pulmonary embolus
2. Pulmonary AV malformation
3. Pulmonary varices
4. Pulmonary artery aneurysm
5. Anomalous pulmonary venous return

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