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Published in: Child's Nervous System 5/2005

01-05-2005 | Case Report

Proton magnetic resonance spectroscopic imaging in pediatric pilomyxoid astrocytoma

Authors: Bayram Cirak, Alena Horská, Peter B. Barker, Peter C. Burger, Benjamin S. Carson, Anthony M. Avellino

Published in: Child's Nervous System | Issue 5/2005

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Abstract

Objects

A pilomyxoid astrocytoma (PmA) is considered to be either a more aggressive variant of a pediatric pilocytic astrocytoma (PA) or a tumor of a separate entity.

Methods

We present two cases of pediatric optic-chiasmatic PmA. Proton magnetic resonance spectroscopic imaging (MRSI) of the PmA revealed decreased concentrations of total choline (Cho), creatine (Cr), and N-acetyl aspartate (NAA). In contrast, proton MR spectra of PAs showed elevated Cho and decreased Cr and NAA signals.

Conclusion

Low metabolite concentrations in PmAs detected by MRSI may therefore help to distinguish PmAs from PAs preoperatively.
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Metadata
Title
Proton magnetic resonance spectroscopic imaging in pediatric pilomyxoid astrocytoma
Authors
Bayram Cirak
Alena Horská
Peter B. Barker
Peter C. Burger
Benjamin S. Carson
Anthony M. Avellino
Publication date
01-05-2005
Publisher
Springer-Verlag
Published in
Child's Nervous System / Issue 5/2005
Print ISSN: 0256-7040
Electronic ISSN: 1433-0350
DOI
https://doi.org/10.1007/s00381-004-1023-2

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