Pulmonary Artery Dissection: A Fatal Complication of Pulmonary Hypertension

Figure 3

Intimal flap features determined on CT angiography. Transverse sections of CT pulmonary angiography (a, b) showing dilated central pulmonary arteries with an intimal flap (black arrow) in the main pulmonary trunk and right pulmonary artery. Pericardial effusion (white arrowheads) and bilateral pleural effusion (white arrows) are also noted. Sagittal MPR reconstruction (c) revealed the primary entry tear (arrow) in the proximal main pulmonary trunk and retrograde extension of the intimal flap to the pulmonary valve. Volume rendered images (d) vividly demonstrated the relationship between the intimal flap and pulmonary artery root.

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