CTICasesMetastatic renal cell carcinoma causing pulmonary artery pseudoaneurysm
Imaging findings
Chest CT shows a large, necrotic right upper lobe mass in a patient with metastatic renal cell carcinoma, which developed a surrounding consolidative area, massive hemoptysis, and a large pulmonary artery pseudoaneurysm arising from an adjacent arterial branch.
Key takeaways
Malignant lung lesions (such as necrotic renal cell carcinoma metastases) can invade and erode adjacent pulmonary arteries, leading to pseudoaneurysm formation and life-threatening pulmonary hemorrhage.
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