Work

Tracheal Schwannoma Diagnosed by Endobronchial Ultrasound‐Guided Intranodal Forceps Biopsy ( EBUS ‐ IFB )

Year: 2026

Type: article

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.

Source: Respirology Case Reports

DOI: 10.1002/rcr2.70790

Authors: Tomoya Baba, Masahide Oki, Toshihiro Ohama, Yo Imaeda, Kayo Nomura, Atsushi Torii

Institution: Nagoya Medical Center

Language: English

Topic: Tracheal and airway disorders

Subfield: Pulmonary and Respiratory Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,130