Evidence map›Paper›PMID 42829540›Full record

ArticleSurgical neurology international2026

Tumor-to-tumor metastasis of small cell carcinoma of presumed pulmonary origin to a sphenoid ridge meningioma: A diagnostic pitfall in preoperative systemic evaluation.

Satoru Yabuno, Akito Ikeda, Yutaka Yamauchi, Yuu Takahashi, Shingo Nishihiro, Satoshi Kuramoto, Yasuhiro Ono, Atsuhito Uneda, Tomotsugu Ichikawa

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PubMed Full text at PMC Publisher
In one paragraph

Article in Surgical neurology international, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Satoru YabunoDepartment of Neurosurgery, Kagawa Rosai Hospital, Marugame, Japan.
Akito IkedaDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Yutaka YamauchiDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Yuu TakahashiDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Shingo NishihiroDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Satoshi KuramotoDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Yasuhiro OnoDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.
Atsuhito UnedaDepartment of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Tomotsugu IchikawaDepartment of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Kagawa, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Tumor-to-tumor metastasis (TTM) to a meningioma is rare. Atypical meningioma-like lesion with systemic cancer risk factors warrants evaluation for metastatic disease before resection. Case Description: An 80-year-old man with a smoking history and pulmonary emphysema presented with progressive cognitive decline. Magnetic resonance imaging showed a rapidly enlarging left sphenoid ridge dural-based mass with heterogeneous enhancement and extensive peritumoral edema. Chest radiography revealed a right upper paramediastinal opacity, but chest computed tomography and systemic staging were not performed before craniotomy. Histopathology demonstrated metastatic small cell carcinoma within a meningothelial meningioma, confirming TTM. Postoperative imaging supported small cell carcinoma of presumed pulmonary origin. Despite radiotherapy and chemotherapy, leptomeningeal dissemination developed, and the patient died 15 months after surgery. Conclusion: In older smokers with abnormal chest radiograph and atypical meningioma-like lesions, systemic malignancy should be evaluated before resection. When surgery is necessary, the operative goal should prioritize tissue diagnosis and decompression.

Indexed as

CarcinomaLung neoplasmsMeningiomaNeoplasm metastasisSmall cell

Identifiers

PMID42829540
PMCPMC13633584

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