CTICasesHemorrhagic Pulmonary Infarction due to Sarcoma Metastasis
Imaging findings
Chest CT shows bilateral metastatic sarcoma nodules, a left pleural effusion, and a large, consolidated, non-enhancing area of disordered aeration in the left lower lobe. Contrast-enhanced CT reveals direct tumor invasion and complete occlusion of the left lower lobe pulmonary artery branches and left inferior pulmonary vein.
Key takeaways
Concurrent occlusion of both the pulmonary arterial inflow and pulmonary venous outflow by an invasive metastatic mass can result in severe ischemic tissue injury and hemorrhagic infarction. On contrast CT, this typically manifests as non-enhancing, wedge-shaped consolidated lung.
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