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Updated: May 13, 2026

Minimally Invasive Cisterna Magna Injection Model for Leptomeningeal Metastasis Studies in Mice
Published on: May 23, 2025
Non small cell carcinoma metastasis to meningioma
Kyung Hyun Kim1, Eun Kyoung Hong, Seung Hoon Lee
1Department of Neurosurgery, Seoul National University College of Medicine, Seoul, Korea.
Abstract:
"Tumor-to-tumor" metastasis is a rare event; meningioma has been reported as the most common primary intracranial tumor to harbor cancer metastases. Several hypotheses have been previously proposed to explain this occurrence, but the exact mechanism by which these metastases develop into meningiomas is not yet understood. Magnetic resonance imaging and spectroscopy have been valuable diagnostic tools, but preoperative diagnosis of metastasis to meningioma remains highly difficult. We present a case report of a metastasis of non-small cell lung cancer into an intracranial meningioma.
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