Intraosseous metaplastic meningioma: A case report

Yusuke Utsunomiya, MD; Nobuyuki Mori, MD, PhD; Yuya Matsui, MD; Hiroki Katsushima, MD, PhD; Kenji Hashimoto, MD, PhD; Akihiro Furuta, MD, PhD

Radiology Case Reports (Nov 2021)

Intraosseous metaplastic meningioma: A case report

Yusuke Utsunomiya, MD,
Nobuyuki Mori, MD, PhD,
Yuya Matsui, MD,
Hiroki Katsushima, MD, PhD,
Kenji Hashimoto, MD, PhD,
Akihiro Furuta, MD, PhD

Affiliations

Yusuke Utsunomiya, MD: Department of Radiology, Osaka Red Cross Hospital, 5-30, Fudegasakicho, Tennoji-ku, Osaka 543-8555, Japan; Corresponding authors.
Nobuyuki Mori, MD, PhD: Department of Radiology, Osaka Red Cross Hospital, 5-30, Fudegasakicho, Tennoji-ku, Osaka 543-8555, Japan; Corresponding authors.
Yuya Matsui, MD: Department of Neurosurgery, Osaka Red Cross Hospital, Tennoji-ku, Osaka, Japan
Hiroki Katsushima, MD, PhD: Department of Pathology, Osaka Red Cross Hospital, Tennoji-ku, Osaka, Japan
Kenji Hashimoto, MD, PhD: Department of Neurosurgery, Osaka Red Cross Hospital, Tennoji-ku, Osaka, Japan
Akihiro Furuta, MD, PhD: Department of Radiology, Osaka Red Cross Hospital, 5-30, Fudegasakicho, Tennoji-ku, Osaka 543-8555, Japan

Journal volume & issue: Vol. 16, no. 11
pp. 3300 – 3303

Abstract

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Metaplastic meningioma is a rare World Health Organization Grade I meningioma subtype, accounting for 0.2%-1.6% of all meningiomas. Primary extradural meningiomas represent less than 2% of all meningiomas, with intraosseous meningioma as a subtype of primary extradural meningiomas. Herein, we report the case of a 65-year-old male presenting with headache. His computed tomography scans showed an osteolytic left parietal bone mass, and magnetic resonance imaging revealed hyperintense dots in the mass on T1-weighted images. The mass was then resected and diagnosed on histopathological examination as an intraosseous metaplastic meningioma.

Published in Radiology Case Reports

ISSN: 1930-0433 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine
Website: https://www.sciencedirect.com/journal/radiology-case-reports

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