CTICasesMetastatic Meningioma to the Lung
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Imaging findings
A patient with a known history of a brain mass presented with lung metastases. CT scans from 2007 showed multiple lung nodules, primarily in the left lower lobe, with some suggestive of intravascular metastases. Brain MRI/CT from 2002 revealed an atypical sphenoid wing meningioma that extended anteriorly into the globe, diagnosed after an initial resection. Follow-up imaging in 2013 showed minimal growth of the lung nodules, with continued suspicion for intravascular spread.
Key takeaways
Metastatic meningioma to the lung is a rare but well-documented phenomenon. These metastases are often slow-growing and can present with an intravascular pattern. While meningiomas are the most common intracranial tumor to metastasize to the lung, other rare instances include medulloblastoma and ependymoma. Improved cancer treatments leading to longer survival may increase the incidence of such distant metastases.
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