{
  "abstract": "A 36-year-old man developed acute progressive ataxia, an impaired consciousness, and ophthalmoplegia after an upper respiratory tract infection. A cerebrospinal fluid analysis revealed pleocytosis in the patient. Initial plain brain magnetic resonance imaging (MRI) showed no remarkable findings, whereas initial brain perfusion single-photon emission computed tomography demonstrated hyperperfusion in the brainstem. Follow-up contrast-enhanced MRI revealed diffuse dural thickening, and a histopathological examination supported the diagnosis of hypertrophic pachymeningitis. Anti-GQ1b antibodies were detected, leading to a diagnosis of Bickerstaff brainstem encephalitis (BBE). This case suggests that hypertrophic pachymeningitis may be a rare complication of BBE.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "name": "Taiki Matsubayashi"
    },
    {
      "name": "Kaoru Morita"
    },
    {
      "name": "Jun Terai"
    },
    {
      "name": "Misako Furuki"
    },
    {
      "name": "Ayumi Uchibori"
    },
    {
      "name": "Masato Obayashi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/04e1cs9kmxdzx.bib",
  "cited_by": 0,
  "doi": "10.2169/internalmedicine.7558-26",
  "fulltext_url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7558-26/_article",
  "id": "04e1cs9kmxdzx",
  "issns": [
    "1349-7235",
    "0918-2918"
  ],
  "landing_url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7558-26/_article",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "jstage-journal",
      "medicine/general"
    ],
    [
      "openalex",
      "2728|Peripheral Neuropathies and Disorders"
    ]
  ],
  "openalex": "W7220921261",
  "pdf_url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7558-26/_pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/04e1cs9kmxdzx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:31Z",
      "native_id": "10.2169/internalmedicine.7558-26",
      "source": "jstage",
      "url": "https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7558-26/_article"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2728|Peripheral Neuropathies and Disorders",
      "subfield": "neurology"
    }
  ],
  "title": "Anti-GQ1b-Positive Bickerstaff Brainstem Encephalitis Complicated by Diffuse Hypertrophic Pachymeningitis: A Case Report",
  "title_text": "Anti-GQ1b-Positive Bickerstaff Brainstem Encephalitis Complicated by Diffuse Hypertrophic Pachymeningitis: A Case Report",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:31Z",
  "url": "https://research.draconitic.com/paper/04e1cs9kmxdzx",
  "venue": "Internal Medicine",
  "versions": []
}