{
  "abstract": "Definitively diagnosing submucosal airway lesions is often challenging because conventional endobronchial forceps biopsies cannot access the deeper tissues. Endobronchial ultrasound-guided intranodal forceps biopsy (EBUS-IFB) has improved diagnostic yield for mediastinal lymph nodes; however, its application to submucosal airway lesions has not been reported. A 72-year-old man was referred to our institution because of a tracheal tumour incidentally discovered via computed tomography. Bronchoscopy revealed a broad-based, smooth-surfaced, elevated lesion involving the deep subepithelial to intramural layers. EBUS-transbronchial needle aspiration (TBNA) followed by EBUS-IFB via the puncture tract was performed. Although TBNA was inconclusive, the EBUS-IFB specimen preserved the tissue architecture with palisading spindle cells positive for S-100 and SOX10, confirming tracheal schwannoma. No complications occurred. This case suggests that EBUS-IFB may be a feasible diagnostic option for selected predominantly submucosal airway lesions when conventional sampling is inconclusive.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Respiratory Medicine NHO Nagoya Medical Center Nagoya Japan."
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Tomoya Baba",
      "orcid": "0009-0008-3759-6633"
    },
    {
      "affs": [
        0
      ],
      "name": "Masahide Oki"
    },
    {
      "affs": [
        0
      ],
      "name": "Toshihiro Ohama"
    },
    {
      "affs": [
        0
      ],
      "name": "Yo Imaeda"
    },
    {
      "affs": [
        0
      ],
      "name": "Kayo Nomura"
    },
    {
      "affs": [
        0
      ],
      "name": "Atsushi Torii",
      "orcid": "0000-0003-1501-6307"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c3mzkvh212fz7.bib",
  "cited_by": 0,
  "doi": "10.1002/rcr2.70790",
  "fulltext_url": "https://europepmc.org/articles/PMC13682206",
  "id": "c3mzkvh212fz7",
  "issns": [
    "2051-3380"
  ],
  "landing_url": "https://europepmc.org/article/MED/42903714",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2740|Tracheal and airway disorders"
    ]
  ],
  "openalex": "W7223038982",
  "pdf_url": "https://europepmc.org/articles/PMC13682206?pdf=render",
  "pmcid": "PMC13682206",
  "pmid": "42903714",
  "published": "2026-10-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c3mzkvh212fz7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:53Z",
      "native_id": "MED:42903714",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42903714"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2740|Tracheal and airway disorders",
      "subfield": "general"
    }
  ],
  "title": "Tracheal Schwannoma Diagnosed by Endobronchial Ultrasound-Guided Intranodal Forceps Biopsy (EBUS-IFB).",
  "title_text": "Tracheal Schwannoma Diagnosed by Endobronchial Ultrasound-Guided Intranodal Forceps Biopsy (EBUS-IFB).",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:53Z",
  "url": "https://research.draconitic.com/paper/c3mzkvh212fz7",
  "venue": "Respirology case reports",
  "versions": []
}