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    Glioneuronal tumor with neuropil-like islands (GNTNI) is a very rare subtype of glioneuronal tumor. We present a case of a 62-year-old man with GNTNI. Two adjacent lesions in the left parietal lobe were removed by left parietal craniotomy. The histological findings were glial cell proliferation and scattered rosettes consisting of synaptophysin-positive and NeuN-positive cells, leading to the diagnosis of GNTNI. Target sequencing revealed a genetic alteration similar to glioblastoma, IDH-wild type, which suggested adjuvant therapies. There are few previous reports on the treatment of this disease, and the patient should be followed carefully.


    Nobushige Tsuboi, Joji Ishida, Yosuke Shimazu, Hisanori Edaki, Atsuhito Uneda, Yoshihiro Otani, Kentaro Fujii, Kazuhiko Kurozumi, Daisuke Ennishi, Hiroyuki Yanai, Isao Date. Genomic Profiling of a Case of Glioneuronal Tumor with Neuropil-like Islands. Acta medica Okayama. 2022 Aug;76(4):473-477

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    PMID: 36123163

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