Abstract
Purpose
Previous pathological investigations have reported bronchiolitis obliterans (BO) as the major long-term sequela of exposure to sulfur mustard. In this study, we investigated whether high-resolution computed tomography (HRCT) could be used as a noninvasive imaging modality to differentiate between mustard lung (as a subtype of BO) and other respiratory disorders.
Materials and methods
Three groups of patients with sulfur-mustard-induced lung injury (BO), severe chronic asthma (resistant asthma) and smoking habit, respectively, were recruited. Also 30 nonsmoking participants were recruited randomly as the control group. Pulmonary function tests (PFT) and HRCT were performed. Images were viewed with a window level of −450 and window width of 1,400 HU. All images were evaluated by an expert radiologist who was blinded regarding the patients’ diagnoses and clinical situations.
Results
Airway involvement was higher and more frequent than parenchymal involvement in the groups with chemical-induced injury and asthma in comparison with smokers. On the other hand, parenchymal involvement was more frequent than airway involvement in the smokers’ group in comparison with the other groups.
Conclusions
HRCT can be a very useful method for differentiating between mustard lung, resistant asthma and lung injuries due to cigarette smoking.
Abstract
Obiettivo
Numerosi precedenti studi di anatomia patologica hanno dimostrato come la bronchiolite obliterante (BO) sia la conseguenza a lungo termine più frequente all’esposizione alle mostarde azotate (iprite). In questo studio abbiamo valutato se la tomografia computerizzata ad alta risoluzione (HRCT) possa essere impiegata come modalità di imaging non invasivo per la diagnosi differenziale tra il danno polmonare indotto da mostarde azotate (sottotipo di BO) ed altre patologie respiratorie.
Materiali e metodi
Sono stati reclutati tre gruppi di pazienti, rispettivamente affetti da bronchiolite obliterante indotta da mostarde azotate (BO), affetti da asma cronica (asma refrattaria) e fumatori. Sono stati scelti casualmente ulteriori 30 soggetti non fumatori come gruppo di controllo.Tutti i pazienti sono stati tutti sottoposti a test di funzionalità respiratoria (PFT) e HRCT. Le immagini sono state visualizzate con un livello di finestra di −450 UH ed un’ampiezza di finestra di 1,400 UH. Tutte le immagini sono state visionate da un radiologo esperto all’insaputa della diagnosi e della situazione clinica dei pazienti.
Risultati
Il coinvolgimento delle vie aeree è risultato maggiore e più frequente del coinvolgimento parenchimale nei gruppi di pazienti con danno polmonare chimicamente indotto e asmatici rispetto ai fumatori. D’altra parte il coinvolgimento parenchimale è risultato più frequente del coinvolgimento delle vie aeree nel gruppo di fumatori rispetto agli altri gruppi.
Conclusioni
L’ HRCT risulta essere un metodo utile per la diagnosi differenziale tra il danno polmonare da mostarde azotate, l’asma refrattaria ed il danno polmonare indotto dal fumo.
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References/Bibliografia
Ghanei M, Tazelaar HD, Chilosi M et al (2008) An international collaborative pathologic study of surgical lung biopsies from mustard gas-exposed patients. Respir Med 102:825–830
Saglani S, Papaioannou G, Khoo L et al (2006) Can HRCT be used as a marker of airway remodelling in children with difficult asthma? Respir Res 7:46
Teel GS, Engeler CE, Tashijian JH, duCret RP (1996) Imaging of small airways diseases. Radiographics 16:27–413
Yilmaz S, Ekici A, Ekici M, Keles H (2006) High-resolution computed tomography findings in elderly patients with asthma. Eur J Radiol 59:238–243
SA, Park CS, Kim JS, Müller NL (1997) Bronchiolitis obliterans after lung transplantation: high-resolution CT findings in 15 patients. Worthy AJR 169:673–677
Gupta PP, Yadav R, Verma M et al (2009) High-resolution computed tomography features in patients with chronic obstructive pulmonary disease. Singapore Med J 50:193–200
Boskabady MH, Kolahdooz GH (2002) Prevalence of asthma symptoms among the adult population in the city of Mashhad (north-east of Iran). Respirology 7:267–272
Niimi A, Matsumoto H, Amitani R et al (2000) Airway wall thickness in asthma assessed by computed tomography. Relation to clinical indices. Am J Respir Crit Care Med 162:1518–1523
Jensen SP, Lynch DA, Brown KK et al (2002) High-resolution CT features of severe asthma and bronchiolitis obliterans. Clin Radiol 57:1078–1085
Cho SH, Seo JY, Choi DC et al (1996) Pathological changes according to the severity of asthma. Clin Exp Allergy 26:1210–1219
Clark KD, Wardrobe-Wong N, Elliott JJ et al (2001) Patterns of lung disease in a “normal” smoking population: are emphysema and airflow obstruction found together? Chest 120:743–747
Ghanei M, Fathi H, Mohammad MM et al (2004) Long-term respiratory disorders of claimers with subclinical exposure to chemical warfare agents. Inhal Toxicol 16:491–495
Ghanei M, Mokhtari M, Mohammad MM, Aslani J (2004) Bronchiolitis obliterans following exposure to sulfur mustard: chest high resolution computed tomography. Eur J Radiol 52:164–169
Hefazi M, Attaran D, Mahmoudi M, Balali-Mood M (2005) Late respiratory complications of mustard gas poisoning in Iranian veterans. Inhal Toxicol 17:587–592
Bagheri MH, Hosseini SK, Mostafavi SH, Alavi SA (2003) High resolution CT in chronic pulmonary changes after mustard gas exposure. Acta Radiol 44:241–245
Paganin F, Séneterre E, Chanez P et al (1996) Computed tomography of the lungs in asthma: influence of disease severity and etiology. Am J Respir Crit Care Med 153:110–114
Carr DH, Hibon S, Rubens M, Chung KF (1998) Peripheral airways obstruction on high-resolution computed tomography in chronic severe asthma. Respir Med 92:448–453
Vignola AM, Paganin F, Capieu L et al (2004) Airway remodelling assessed by sputum and high-resolution computed tomography in asthma and COPD. Eur Respir J 24:910–917
Lynch DA, Newell JD, Tschomper BA et al (1993) Uncomplicated asthma in adults: comparison of CT appearance of the lungs in asthmatic and healthy subjects. Radiology 188:829–833
Harmanci E, Kebapci M, Metintas M, Ozkan R (2002) High-resolution computed tomography findings are correlated with disease severity in asthma. Respiration 69:420–426
Deveci F, Murat A, Turgut T et al (2004) Airway wall thickness in patients with COPD and healthy current smokers and healthy non-smokers: assessment with high resolution computed tomographic scanning. Respiration 71:602–610
Webb R, Muller N (2001) High-resolution CT of the lung, 3rd edn. Lippincott Williams & Wilkins, New York
Bankier AA, Van Muylem A, Scillia P et al (2003) Air trapping in heart-lung transplant recipients: variability of anatomic distribution and extent at sequential expiratory thin-section CT. Radiology 229:737–742
Yorgancio lu A, Sakar A, Tarhan S et al (2003) High resolution CT findings in patients with asthma. Tuberk Turaks 51:5–10
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Ghanei, M., Ghayumi, M., Ahakzani, N. et al. Noninvasive diagnosis of bronchiolitis obliterans due to sulfur mustard exposure: could high-resolution computed tomography give us a clue?. Radiol med 115, 413–420 (2010). https://doi.org/10.1007/s11547-010-0503-6
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DOI: https://doi.org/10.1007/s11547-010-0503-6