CTICasesPulmonary tumor emboli from osteosarcoma
Imaging findings
Serial CT scans of a patient with osteosarcoma show slow, progressive enlargement and expansion of branching tubular opacities within the pulmonary artery branches, representing intravascular tumor emboli rather than standard thromboemboli.
Key takeaways
Pulmonary tumor embolism can present on CT as branching, expanded tubular structures within the pulmonary vasculature. High resolution or MIP reconstructions are useful for detecting subtle caliber changes.
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