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ArticleRadiology case reports2025

A T1-isointense meningeal melanocytoma mimicking meningioma: Case report and literature review.

Shu Matsushita, Taro Shimono, Hiroki Morisako, Rikako Tanaka, Taishin Yamaoka, Toru Sugioka, Yukio Miki

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PubMed Full text at PMC Publisher
In one paragraph

Article in Radiology case reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Shu MatsushitaDepartment of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Taro ShimonoDepartment of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Hiroki MorisakoDepartment of Neurosurgery, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Rikako TanakaDepartment of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Taishin YamaokaDepartment of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Toru SugiokaDepartment of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Yukio MikiDepartment of Diagnostic and Interventional Radiology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Meningeal melanocytomas are rare, benign, melanocytic neoplasms of the pia mater, typically characterized by a high T1-weighted signal intensity on MRI. We report the case of a 47-year-old female with a T1-isointense tentorial lesion initially diagnosed as a meningioma, but histologically confirmed as a melanin-containing meningeal melanocytoma. Despite extensive intraoperative and pathological evidence of pigmentation, the tumor did not display the expected T1 hyperintensity, emphasizing that meningeal melanocytomas occasionally present with atypical imaging features. This case highlights the need to include melanocytic tumors in the differential diagnosis of intracranial lesions that lack classical radiological characteristics.

Indexed as

Meckel caveMeningeal melanocytomaTentorium

Identifiers

PMID40989053
PMCPMC12452845

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