Immunocytochemical Studies in Canine Neuroectodermal Brain Tumors

Overview

Journal Acta Neuropathol

Specialty Neurology

Date 1985 Jan 1

PMID 2409734

Citations 7

Authors

M Vandevelde

R FANKHAUSER

H LUGINBUHL

Affiliations

Soon will be listed here.

Abstract

Seventy-four canine neuroectodermal tumors were examined immunocytochemically for the presence of glial fibrillary acidic protein (GFAP). Eleven oligodendrogliomas were examined for the presence of myelin basic protein (MBP) and myelin-associated glycoprotein (MAG). Twenty-three tumors, including ten astrocytomas, one ependymoma, two glioblastomas, one case of gliomatosis, and nine poorly differentiated gliomas were positive for GFAP. Two astrocytomas, eleven oligodendrogliomas, eight ependymomas, four choroid plexus papillomas, two medulloblastomas, one glioblastoma, nine poorly differentiated gliomas, six cases of gliomatosis, and three unclassified tumors were GFAP-negative. In six tumors (including four that were classified as astrocytoma) GFAP staining was equivocal. All oligodendrogliomas were MBP-negative but three expressed MAG. It was concluded that many canine gliomas are not only morphologically but also immunocytochemically similar to human gliomas, but that a larger proportion of canine neuroectodermal growths are undifferentiated tumors.

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