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Pleomorphic xanthoastrocytoma with gangliogliomatous component.


Vajtai, I; Varga, Z; Aguzzi, A (1997). Pleomorphic xanthoastrocytoma with gangliogliomatous component. Pathology, Research and Practice, 193(9):617-621.

Abstract

We describe a composite glio-neuronal tumor comprising pleomorphic xanthoastrocytoma (PXA) and ganglioglioma identified in a left temporal biopsy. The 32-year-old male patient underwent surgery following a clinical history of persistent headaches of 6 years' duration. Immunohistochemical double labeling with antibodies to synaptophysin, beta-tubulin isotype III, GFAP and CD44H demonstrated neoplastic neurons and astrocytes in the ganglioglioma, while coexpression of glial and neuronal markers was found in a subset of PXA tumor cells variously showing giant cell or spindle cell morphology. There were gradual transitions between the two neoplastic populations. These findings raise the possibility of ganglioglioma having evolved by differentiation of bipotential PXA tumor cells along astrocytic and neuronal lineages. The PXA may, therefore, be closely related to desmoplastic neuroepithelial tumors of infancy, a group of neoplasms of presumed embryonal origin.

We describe a composite glio-neuronal tumor comprising pleomorphic xanthoastrocytoma (PXA) and ganglioglioma identified in a left temporal biopsy. The 32-year-old male patient underwent surgery following a clinical history of persistent headaches of 6 years' duration. Immunohistochemical double labeling with antibodies to synaptophysin, beta-tubulin isotype III, GFAP and CD44H demonstrated neoplastic neurons and astrocytes in the ganglioglioma, while coexpression of glial and neuronal markers was found in a subset of PXA tumor cells variously showing giant cell or spindle cell morphology. There were gradual transitions between the two neoplastic populations. These findings raise the possibility of ganglioglioma having evolved by differentiation of bipotential PXA tumor cells along astrocytic and neuronal lineages. The PXA may, therefore, be closely related to desmoplastic neuroepithelial tumors of infancy, a group of neoplasms of presumed embryonal origin.

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27 citations in Web of Science®
26 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:1997
Deposited On:11 Feb 2008 12:25
Last Modified:05 Apr 2016 12:20
Publisher:Elsevier
ISSN:0344-0338
Publisher DOI:https://doi.org/10.1016/S0344-0338(97)80039-8
PubMed ID:9521020

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