Ultrasound-guided transbronchial biopsy in the diagnosis of fibrosing mediastinitis-associated pulmonary hypertension

Background: Fibrosing mediastinitis is a rare benign disease frequently complicated by pulmonary hypertension. A definitive diagnosis for fibrosing mediastinitis-associated pulmonary hypertension (FM-PH) and its etiologies necessitates mediastinal biopsy and subsequent pathological assessment. Endob...

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Hauptverfasser: Zhang, Yu (VerfasserIn) , Song, Han-Xiang (VerfasserIn) , Qi, Yong-Jia (VerfasserIn) , Sun, Nan-Nan (VerfasserIn) , Huang, Zan-Sheng (VerfasserIn) , Fu, Wan-Lei (VerfasserIn) , Zhang, Jing (VerfasserIn) , Herth, Felix (VerfasserIn) , Fan, Ye (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 15 April 2025
In: Orphanet journal of rare diseases
Year: 2025, Jahrgang: 20, Pages: 1-9
ISSN:1750-1172
DOI:10.1186/s13023-025-03695-3
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1186/s13023-025-03695-3
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Verfasserangaben:Yu Zhang, Han-Xiang Song, Yong-Jia Qi, Nan-Nan Sun, Zan-Sheng Huang, Wan-Lei Fu, Jing Zhang, Felix J.F. Herth and Ye Fan

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520 |a Background: Fibrosing mediastinitis is a rare benign disease frequently complicated by pulmonary hypertension. A definitive diagnosis for fibrosing mediastinitis-associated pulmonary hypertension (FM-PH) and its etiologies necessitates mediastinal biopsy and subsequent pathological assessment. Endobronchial ultrasound (EBUS)-guided transbronchial mediastinal cryobiopsy is a recently developed technique that provides diagnostic advantages over standard needle biopsy, particularly in benign mediastinal disorders. Nevertheless, their safety and efficacy in diagnosing FM-PH remain elusive. Methods: We retrospectively studied patients with mediastinal lesion and pulmonary vascular compression who underwent both transbronchial needle aspiration and mediastinal cryobiopsy with EBUS guidance. Diagnostic yields of FM-PH and its etiologies, along with procedure-related adverse events, were analyzed. Immunohistochemical study was conducted to identify immunological properties of FM-PH. Results: Of the 529 patients with mediastinal lesions, 80 exhibited pulmonary vessel compression, including 10 who were ultimately diagnosed with FM-PH following mediastinal biopsy and right heart catheterization. Cryobiopsy showed a higher diagnostic yield for FM-PH compared to needle aspiration (100% versus 40%, p = 0.011). Disease etiologies included pneumoconiosis in 5 cases, tuberculosis in 3, and idiopathic FM-PH in the remaining 2. Cryobiopsy appeared to be superior to needle biopsy for etiological diagnosis, although this difference was not statistically significant (80% versus 60%, p = 0.628). Immunohistochemical analyses of cryosamples revealed mixed inflammatory infiltrates of B and T lymphocytes, as well as macrophages, surrounding or within FM-PH lesions. There was no significant bleeding or other complications. Conclusion: Transbronchial mediastinal cryobiopsy might be a safe and effective diagnostic tool for FM-PH, offering valuable information for personalized treatment. 
650 4 |a Cryobiopsy 
650 4 |a Endobronchial ultrasound 
650 4 |a Fibrosing mediastinitis 
650 4 |a Needle aspiration 
650 4 |a Pulmonary hypertension 
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700 1 |a Qi, Yong-Jia  |e VerfasserIn  |4 aut 
700 1 |a Sun, Nan-Nan  |e VerfasserIn  |4 aut 
700 1 |a Huang, Zan-Sheng  |e VerfasserIn  |4 aut 
700 1 |a Fu, Wan-Lei  |e VerfasserIn  |4 aut 
700 1 |a Zhang, Jing  |e VerfasserIn  |4 aut 
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700 1 |a Fan, Ye  |e VerfasserIn  |4 aut 
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