PMC8462478_01
Chest radiograph showing multiple, round, variably sized masses scattering in both lungs, compatible with pulmonary metastasis.
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F1
Chest radiograph revealed a larger size of the multiple well-defined pulmonary masses scattered in both lungs; therefore, progressive pulmonary metastasis was suspected (Figure 1).
(a) Axial MIP image showing multiple masses, scattering in both lungs and surrounding segmental/subsegmental branches of pulmonary arteries, and multiple PAPs. (b) Coronal 3D Volume Rendered image showing multiple PAPs scattering in both lungs. The two largest ones are located in both lower lobes.
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F2
Multiple fusiform pulmonary artery pseudoaneurysms surrounded by soft tissue masses were also noted (Figure 2).
(a) and (b) Serial axial chest CT within one month showing aneurysmal dilatation and developing soft tissue masses surrounding the previously seen tumor emboli in the peripheral branches of right pulmonary arteries (arrows). (c-f) Serial axial chest CT at eight months prior (c), one month prior (d), and the present study (e) and (f) showing gradual dilatation of peripheral branches of right pulmonary arteries, and finally pseudoaneurysms with surrounding soft tissue masses (arrows).
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F3
A review of serial chest computed tomography (CT) revealed tumor emboli in the peripheral branches of pulmonary arteries (Figure 3a), which finally developed into pseudoaneurysms with surrounding soft tissue masses (Figure 3b-3f).