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Papillary glioneuronal tumor (PGNT) is a rare central nervous system neoplasm. Of reported cases, the vast majority are located in the frontal and temporal lobes. We present the case of a 39-year-old male who presented with a one day history of gait disturbance following chemotherapy treatment for metastatic rectal adenocarcinoma. Following MRI of the head showed a tectal mass. Following an occipital interhemispheric craniotomy for tumor resection, final pathology was diagnostic of a papillary neuroglial tumor, WHO grade I. To the best or out knowledge this is the only report of it arising from the tectal plate.


Paul Page, Jennifer Meylor, Yiping Li, Viharkumar Patel, Azam Ahmed. Tectal region papillary neuroglial tumour: a case report. British journal of neurosurgery. 2023 Aug;37(4):601-603

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PMID: 30741021

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