Rosette-forming glioneuronal tumor of the fourth ventricle (original) (raw)
Abstract
Rosette-forming glioneuronal tumor (RGNT) of the fourth ventricle has been reported recently as a novel type of primary CNS neoplasm. We present the case of a 35-year-old male patient with RGNT of the fourth ventricle. The tumor was found incidentally; the patient did not suffer from any neurological symptoms. The tumor mass involved the caudal cerebellar vermis, filled the fourth ventricle and protruded into the caudal part of the mesencephalic aquaeduct. Smaller tumor nodules were visible in the adjacent right cerebellar hemisphere. Histologically, prominent neurocytic rosettes with synaptophysin expression were embedded in a glial tumor component resembling pilocytic astrocytoma. Clinicopathological features of our case closely resemble those reported in the original description. Thus, our case confirms RGNT as a new distinct type of primary CNS neoplasm. Due to its distinct features, adoption of RGNT as a new entity into the WHO classification of tumors should be considered.
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References
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Acknowledgements
This case study was performed within the Austrian Neuro-Oncology Network (ANN, www.ann.at).
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Authors and Affiliations
- Institute of Neurology, University of Vienna, AKH 4J, Währinger Gürtel 18–20, POB 48, 1097, Vienna, Austria
Matthias Preusser, Herbert Budka & Johannes A. Hainfellner - Department of Neurosurgery, University of Vienna, Vienna, Austria
Wolfgang Dietrich & Thomas Czech - Department of Neuroradiology, University of Vienna, Vienna, Austria
Daniela Prayer
Authors
- Matthias Preusser
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Correspondence toJohannes A. Hainfellner.
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Preusser, M., Dietrich, W., Czech, T. et al. Rosette-forming glioneuronal tumor of the fourth ventricle.Acta Neuropathol 106, 506–508 (2003). https://doi.org/10.1007/s00401-003-0758-2
- Received: 25 June 2003
- Revised: 14 July 2003
- Accepted: 14 July 2003
- Published: 12 August 2003
- Issue Date: November 2003
- DOI: https://doi.org/10.1007/s00401-003-0758-2