A 6-year-old girl with an extra-axial mass in the middle cranial fossa

Com sept 2009, case 1

Kenta Masui, Satoshi Suzuki, Akira Kondo, Toru Iwaki

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A 6-year-old Japanese girl presented with psychomotor seizures. Magnetic resonance (MR) images disclosed a mass lesion in the left middle cranial fossa with an internal irregular-shaped area, which was hyperintense on T1-weighted images and hypointense on T2-weighted images. Gross total resection of the tumor was performed through left occipital craniotomy. The tumor was white-to-grayish hard tissue, focally showing blackish pigmentation. Histological, immunohistochemical and electron-microscopical analyses revealed that white-to-grayish hard tissue corresponded to an atypical meningioma, and the blackish pigmentation of the tumor was composed of non-neoplastic, reactive hyperplasia and colonization of meningeal melanocytes in the meningioma tissue. A meningioma with reactive hyperplasia and colonization of meningeal melanocytes is unusual, but it is clinically important to differentiate this entity from other melanocytic tumors.

Original languageEnglish
Pages (from-to)269-272
Number of pages4
JournalBrain Pathology
Volume20
Issue number1
DOIs
Publication statusPublished - Jan 1 2010

Fingerprint

Middle Cranial Fossa
Meningioma
Melanocytes
Pigmentation
Hyperplasia
Neoplasms
Craniotomy
Seizures
Magnetic Resonance Spectroscopy
Electrons

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Pathology and Forensic Medicine
  • Clinical Neurology

Cite this

A 6-year-old girl with an extra-axial mass in the middle cranial fossa : Com sept 2009, case 1. / Masui, Kenta; Suzuki, Satoshi; Kondo, Akira; Iwaki, Toru.

In: Brain Pathology, Vol. 20, No. 1, 01.01.2010, p. 269-272.

Research output: Contribution to journalArticle

@article{d9cedc4f2de14d86946ec4c78945a02f,
title = "A 6-year-old girl with an extra-axial mass in the middle cranial fossa: Com sept 2009, case 1",
abstract = "A 6-year-old Japanese girl presented with psychomotor seizures. Magnetic resonance (MR) images disclosed a mass lesion in the left middle cranial fossa with an internal irregular-shaped area, which was hyperintense on T1-weighted images and hypointense on T2-weighted images. Gross total resection of the tumor was performed through left occipital craniotomy. The tumor was white-to-grayish hard tissue, focally showing blackish pigmentation. Histological, immunohistochemical and electron-microscopical analyses revealed that white-to-grayish hard tissue corresponded to an atypical meningioma, and the blackish pigmentation of the tumor was composed of non-neoplastic, reactive hyperplasia and colonization of meningeal melanocytes in the meningioma tissue. A meningioma with reactive hyperplasia and colonization of meningeal melanocytes is unusual, but it is clinically important to differentiate this entity from other melanocytic tumors.",
author = "Kenta Masui and Satoshi Suzuki and Akira Kondo and Toru Iwaki",
year = "2010",
month = "1",
day = "1",
doi = "10.1111/j.1750-3639.2009.00348.x",
language = "English",
volume = "20",
pages = "269--272",
journal = "Brain Pathology",
issn = "1015-6305",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - A 6-year-old girl with an extra-axial mass in the middle cranial fossa

T2 - Com sept 2009, case 1

AU - Masui, Kenta

AU - Suzuki, Satoshi

AU - Kondo, Akira

AU - Iwaki, Toru

PY - 2010/1/1

Y1 - 2010/1/1

N2 - A 6-year-old Japanese girl presented with psychomotor seizures. Magnetic resonance (MR) images disclosed a mass lesion in the left middle cranial fossa with an internal irregular-shaped area, which was hyperintense on T1-weighted images and hypointense on T2-weighted images. Gross total resection of the tumor was performed through left occipital craniotomy. The tumor was white-to-grayish hard tissue, focally showing blackish pigmentation. Histological, immunohistochemical and electron-microscopical analyses revealed that white-to-grayish hard tissue corresponded to an atypical meningioma, and the blackish pigmentation of the tumor was composed of non-neoplastic, reactive hyperplasia and colonization of meningeal melanocytes in the meningioma tissue. A meningioma with reactive hyperplasia and colonization of meningeal melanocytes is unusual, but it is clinically important to differentiate this entity from other melanocytic tumors.

AB - A 6-year-old Japanese girl presented with psychomotor seizures. Magnetic resonance (MR) images disclosed a mass lesion in the left middle cranial fossa with an internal irregular-shaped area, which was hyperintense on T1-weighted images and hypointense on T2-weighted images. Gross total resection of the tumor was performed through left occipital craniotomy. The tumor was white-to-grayish hard tissue, focally showing blackish pigmentation. Histological, immunohistochemical and electron-microscopical analyses revealed that white-to-grayish hard tissue corresponded to an atypical meningioma, and the blackish pigmentation of the tumor was composed of non-neoplastic, reactive hyperplasia and colonization of meningeal melanocytes in the meningioma tissue. A meningioma with reactive hyperplasia and colonization of meningeal melanocytes is unusual, but it is clinically important to differentiate this entity from other melanocytic tumors.

UR - http://www.scopus.com/inward/record.url?scp=71549119863&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71549119863&partnerID=8YFLogxK

U2 - 10.1111/j.1750-3639.2009.00348.x

DO - 10.1111/j.1750-3639.2009.00348.x

M3 - Article

VL - 20

SP - 269

EP - 272

JO - Brain Pathology

JF - Brain Pathology

SN - 1015-6305

IS - 1

ER -