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dc.contributor.authorShinno, Kazumaen
dc.contributor.authorArakawa, Yoshikien
dc.contributor.authorMinamiguchi, Sachikoen
dc.contributor.authorTerada, Yukinorien
dc.contributor.authorTanji, Masahiroen
dc.contributor.authorMineharu, Yoheien
dc.contributor.authorKikuchi, Takayukien
dc.contributor.authorHaga, Hironorien
dc.contributor.authorMiyamoto, Susumuen
dc.contributor.alternative新野, 一眞ja
dc.contributor.alternative荒川, 芳輝ja
dc.contributor.alternative南口, 早智子ja
dc.contributor.alternative寺田, 行範ja
dc.contributor.alternative丹治, 正大ja
dc.contributor.alternative峰晴, 陽平ja
dc.contributor.alternative菊池, 隆幸ja
dc.contributor.alternative羽賀, 博典ja
dc.contributor.alternative宮本, 享ja
dc.date.accessioned2022-11-17T04:35:34Z-
dc.date.available2022-11-17T04:35:34Z-
dc.date.issued2021-07-
dc.identifier.urihttp://hdl.handle.net/2433/277286-
dc.description.abstractBACKGROUND: Papillary glioneuronal tumors (PGNTs) are classified as a type of World Health Organization grade I mixed neuronal-glial tumor. Most PGNTs involve cystic formations with mural nodules and solid components in the cerebral hemispheres, and PGNTs occur mainly in young adults. The long-term prognosis of PGNTs remains unclear. OBSERVATIONS: A 38-year-old male had been diagnosed with an arachnoid cyst associated with epilepsy in a local hospital. The initial magnetic resonance imaging (MRI) study showed the tumor as a heterogeneously enhanced nodule in the left postcentral gyrus. Subsequent MRI studies showed slow growth of the tumor for 26 years. He underwent gross total resection to control his epilepsy. The histopathological findings revealed pseudopapillary structures involving hyalinized blood vessels with a single or pseudostratified layer of cuboidal glial cells with round nuclei and scant cytoplasm. At the periphery of the lesion, Rosenthal fibers and acidophilic granule bodies were observed in the gliotic brain tissue. Immunohistochemically, some interpapillary cells were positive for NeuN. On the basis of these findings, the tumor was diagnosed as a PGNT. LESSONS: This PGNT showed slow growth for 26 years. When recognizing a slowly growing tumor in the cerebral hemispheres of relatively young people that is associated with epileptic seizures, PGNT should be considered as a differential diagnosis.en
dc.language.isoeng-
dc.publisherJournal of Neurosurgery Publishing Group (JNSPG)en
dc.rights© 2021 The authorsen
dc.rightsCC BY-NC-ND 4.0en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.subjectpapillary glioneuronal tumoren
dc.subjectPGNTen
dc.subjectslow growthen
dc.subjectlong clinical courseen
dc.subjectneuronal-glial tumoren
dc.subjectepilepsyen
dc.subjectseizureen
dc.titlePapillary glioneuronal tumor growing slowly for 26 years: illustrative caseen
dc.typejournal article-
dc.type.niitypeJournal Article-
dc.identifier.jtitleJournal of Neurosurgery: Case Lessonsen
dc.identifier.volume2-
dc.identifier.issue1-
dc.relation.doi10.3171/case21266-
dc.textversionpublisher-
dc.identifier.artnumCASE21266-
dc.identifier.pmid35854961-
dcterms.accessRightsopen access-
dc.identifier.eissn2694-1902-
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