Pilocytic astrocytoma presenting as an extra-axial tumor in the cerebellopontine angle: Case report

Andreas S. Beutler; John K. Hsiang; David F. Moorhouse; Lawrence A. Hansen; John F. Alksne

doi:10.1227/00006123-199507000-00019

Pilocytic astrocytoma presenting as an extra-axial tumor in the cerebellopontine angle: Case report

Andreas S. Beutler, John K. Hsiang, David F. Moorhouse, Lawrence A. Hansen, John F. Alksne

Medical Oncology

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

GLIAL TUMORS IN the cerebellopontine angle (CPA) are rare. Four histologically distinct types of glial tumors of the CPA have been described in the literature as ependymoma, medulloblastoma, mixed glial tumor, and fibrillary astrocytoma. This case report describes a pilocytic astrocytoma of the CPA. A 58-year-old man with a hearing loss had an extra-axial tumor in the left CPA that extended into the internal auditory canal. The characteristics of the tumor on magnetic resonance imaging scans differed from those of typical CPA tumors. It adhered avidly to the cochlear and vestibular nerves, which had to be sacrificed for gross total resection. Microscopic examination showed the typical features of an adult-type pilocytic astrocytoma.

Original language	English (US)
Pages (from-to)	125-128
Number of pages	4
Journal	Neurosurgery
Volume	37
Issue number	1
DOIs	https://doi.org/10.1227/00006123-199507000-00019
State	Published - Jul 1995

Keywords

Cerebellopontine angle
Cochlear nerve
Pilocytic astrocytoma
Rosenthal fibers
Vestibular nerve

ASJC Scopus subject areas

Surgery
Clinical Neurology

Access to Document

10.1227/00006123-199507000-00019

Cite this

@article{6c911a4a11ed46cf8db95d77f9bd259e,

title = "Pilocytic astrocytoma presenting as an extra-axial tumor in the cerebellopontine angle: Case report",

abstract = "GLIAL TUMORS IN the cerebellopontine angle (CPA) are rare. Four histologically distinct types of glial tumors of the CPA have been described in the literature as ependymoma, medulloblastoma, mixed glial tumor, and fibrillary astrocytoma. This case report describes a pilocytic astrocytoma of the CPA. A 58-year-old man with a hearing loss had an extra-axial tumor in the left CPA that extended into the internal auditory canal. The characteristics of the tumor on magnetic resonance imaging scans differed from those of typical CPA tumors. It adhered avidly to the cochlear and vestibular nerves, which had to be sacrificed for gross total resection. Microscopic examination showed the typical features of an adult-type pilocytic astrocytoma.",

keywords = "Cerebellopontine angle, Cochlear nerve, Pilocytic astrocytoma, Rosenthal fibers, Vestibular nerve",

author = "Beutler, {Andreas S.} and Hsiang, {John K.} and Moorhouse, {David F.} and Hansen, {Lawrence A.} and Alksne, {John F.}",

year = "1995",

month = jul,

doi = "10.1227/00006123-199507000-00019",

language = "English (US)",

volume = "37",

pages = "125--128",

journal = "Neurosurgery",

issn = "0148-396X",

publisher = "Lippincott Williams and Wilkins",

number = "1",

}

TY - JOUR

T1 - Pilocytic astrocytoma presenting as an extra-axial tumor in the cerebellopontine angle

T2 - Case report

AU - Beutler, Andreas S.

AU - Hsiang, John K.

AU - Moorhouse, David F.

AU - Hansen, Lawrence A.

AU - Alksne, John F.

PY - 1995/7

Y1 - 1995/7

N2 - GLIAL TUMORS IN the cerebellopontine angle (CPA) are rare. Four histologically distinct types of glial tumors of the CPA have been described in the literature as ependymoma, medulloblastoma, mixed glial tumor, and fibrillary astrocytoma. This case report describes a pilocytic astrocytoma of the CPA. A 58-year-old man with a hearing loss had an extra-axial tumor in the left CPA that extended into the internal auditory canal. The characteristics of the tumor on magnetic resonance imaging scans differed from those of typical CPA tumors. It adhered avidly to the cochlear and vestibular nerves, which had to be sacrificed for gross total resection. Microscopic examination showed the typical features of an adult-type pilocytic astrocytoma.

AB - GLIAL TUMORS IN the cerebellopontine angle (CPA) are rare. Four histologically distinct types of glial tumors of the CPA have been described in the literature as ependymoma, medulloblastoma, mixed glial tumor, and fibrillary astrocytoma. This case report describes a pilocytic astrocytoma of the CPA. A 58-year-old man with a hearing loss had an extra-axial tumor in the left CPA that extended into the internal auditory canal. The characteristics of the tumor on magnetic resonance imaging scans differed from those of typical CPA tumors. It adhered avidly to the cochlear and vestibular nerves, which had to be sacrificed for gross total resection. Microscopic examination showed the typical features of an adult-type pilocytic astrocytoma.

KW - Cerebellopontine angle

KW - Cochlear nerve

KW - Pilocytic astrocytoma

KW - Rosenthal fibers

KW - Vestibular nerve

UR - http://www.scopus.com/inward/record.url?scp=0029043846&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029043846&partnerID=8YFLogxK

U2 - 10.1227/00006123-199507000-00019

DO - 10.1227/00006123-199507000-00019

M3 - Article

C2 - 8587672

AN - SCOPUS:0029043846

SN - 0148-396X

VL - 37

SP - 125

EP - 128

JO - Neurosurgery

JF - Neurosurgery

IS - 1

ER -

Pilocytic astrocytoma presenting as an extra-axial tumor in the cerebellopontine angle: Case report

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this