CTICasesExtruded Vertebroplasty Cement in the Azygos System
Imaging findings
CT and radiographs show a long, continuous column of extruded cement within the hemiazygos and azygos system extending up into the chest, secondary to recent vertebroplasty, with minor pulmonary cement emboli.
Key takeaways
Leaked vertebroplasty cement can form a cast of the paravertebral and azygos veins. This appearance can mimic an intravascular catheter or calcified thrombus on radiographs. Downstream embolization is common but often asymptomatic.
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