A Case of Suprasellar Papillary Glioneuronal Tumor Mimicking Craniopharyngioma

NMC Case Report Journal
Akira TamaseHideaki Iizuka

Abstract

Papillary glioneuronal tumor (PGNT) is a low-grade biphasic neoplasm with astrocytic and neuronal differentiation. This tumor occurs most commonly in the frontal and temporal lobes, close to the ventricles, and rarely in the cerebellum, brainstem, and pineal gland. However, there has been no report of this tumor in the suprasellar region to date. In this paper, we report a case of PGNT in the suprasellar region in a 16-year-old girl. Magnetic resonance imaging (MRI) revealed a cystic tumor with calcification that progressed from the anterior skull base to the suprasellar and temporal regions. Preoperatively distinguishing this tumor from craniopharyngioma was difficult because of the patient's age, localization of the tumor, and neuroimaging results. This case showed a backward shift of the chiasma, which is observed in only 4.7% of craniopharyngioma, as well as normal endocrine findings. Endocrinological examination and an MRI evaluation of the chiasmal shift may be useful for discrimination.

References

Jul 24, 2002·Journal of Neurosurgery·Rémy Van Effenterre, Anne-Laure Boch
Jun 26, 2012·Brain Pathology·Julia A BridgeRodney D McComb
Jun 1, 2014·Journal of Computer Assisted Tomography·WenLi TanZhang Jun
Aug 12, 2015·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Masaya NagaishiYoichi Nakazato

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Citations

Aug 19, 2021·British Journal of Neurosurgery·Hillary Sayuri Ramires HoshinoAntonio Celso Alvarenga Guimarães

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Methods Mentioned

BETA
surgical resection

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