PMC4899676_01
60-year-old African-American male with pulmonary artery pseudoaneurysm. Axial, contrast-enhanced CT image viewed in soft tissue (A) and lung windows (B) demonstrates consolidation of the posterior segment of the right upper lobe with cavity formation and adjacent contrast blush, consistent with active extravasation. (C) Coronal reformatted image.
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There was adjacent contrast blush consistent with active extravasation, which appeared to communicate with a pulmonary arterial branch (Figure 1, Figure 2).
60-year-old African-American male with pulmonary artery pseudoaneurysm. Oblique coronal MIP image demonstrating pseudoaneurysm (arrow) communicating with pulmonary arterial system.Oblique, coronal MIP image demonstrates pseudoaneurysm (arrow) communicating with pulmonary arterial system.
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There was adjacent contrast blush consistent with active extravasation, which appeared to communicate with a pulmonary arterial branch (Figure 1, Figure 2).
60-year-old African-American male with pulmonary artery pseudoaneurysm. A. Late parenchymal phase. Pulmonary venous phase (B) and arterial phase images (C) demonstrate small right upper-lobe pulmonary arterial pseudoaneurysm.
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The pseudoaneurysm appeared late in the parenchymal phase and lingered past the venous phase (Fig. 3).
60-year-old African-American male with pulmonary artery pseudoaneurysm. Subselective pulmonary arteriogram demonstrating pseudoaneurysm.
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Subsequently, the posterior segmental branch of the right upper lobe of the pulmonary artery branch was catheterized, and an angiogram demonstrated the pseudoaneurysm arising from a small branch (Fig. 4).
60-year-old African-American male with pulmonary artery pseudoaneurysm. Microcatheter at the neck of the pseudoaneurysm.
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This branch was subselected with a microcatheter, and multiple coils were deployed into the pseudoaneurysm (Fig. 5).
60-year-old African-American male with pulmonary artery pseudoaneurysm. Subselective pulmonary arteriogram demonstrates successful coiling of pseudoaneurysm.
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Subsequent angiograms showed no residual filling of the pseudoaneurysm (Fig. 6).