CTICasesMethyl Methacrylate Pulmonary Embolism
Imaging findings
CT chest shows linear, highly dense material (bone cement) filling the bilateral pulmonary arteries, which casted the shape of the paraspinal venous plexus it intravasated into post-vertebroplasty.
Key takeaways
Methyl methacrylate (bone cement) leakage is a known complication of vertebroplasty or kyphoplasty. The liquid cement can intravasate into the paraspinal veins and embolize to the pulmonary arteries, appearing as linear, highly dense branching structures that can be mistaken for retain wires.
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