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VOLUME 64 , ISSUE 4 ( October-December, 2022 ) > List of Articles

CASE REPORT

“Air Bubble Sign” and Fibreoptic Bronchoscopy in Complicated Pulmonary Hydatid Cysts: Steps in the Right Direction

Aparna Chatterjee, Mridul Kumar Sarma, Subhra Mitra

Keywords : Air bubble sign, Bronchoscopy, Pulmonary hydatid cyst

Citation Information : Chatterjee A, Sarma MK, Mitra S. “Air Bubble Sign” and Fibreoptic Bronchoscopy in Complicated Pulmonary Hydatid Cysts: Steps in the Right Direction. Indian J Chest Dis Allied Sci 2022; 64 (4):297-299.

DOI: 10.5005/jp-journals-11007-0044

License: CC BY-NC 4.0

Published Online: 05-01-2023

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Intact pulmonary hydatid cysts are often discovered incidentally on chest X-rays (CXRs) as rounded opaque lesions with smooth borders. Cyst rupture and infection (complicated hydatid cyst) often change the radiologic appearance delaying diagnosis. Air bubble sign on computed tomography is recognized as a sign of high sensitivity and specificity in the diagnosis of complicated hydatid cysts when compared to other classical radiologic signs. Bronchoscopy is not a preferred investigation in patients with intact hydatid cysts but may have a major role in patients with complicated hydatid cysts with atypical presentation. In the present case series, we attempt to highlight the importance of the “air bubble sign” and the identification of a whitish membrane at bronchoscopy in the diagnosis of complicated hydatid cysts.


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  1. Morar R, Feldman C. Pulmonary echinococcosis. Eur Respir J 2003; 21(6):1069–1077. DOI: 10.1183/09031936.03.00108403.
  2. Köktürk O, Oztürk C, Diren B, et al. “Air bubble”: a new diagnostic CT sign of perforated pulmonary hydatid cyst. EurRadiol 1999;9: 1321–1323. DOI: 10.1007/s003300050840.
  3. Yuncu G, Ors Kaya S, Sevinc S, et al. The diagnostic value of the ‘Air Bubble Sign’ in complicated pulmonary hydatid cysts. J Thorac Cardiovasc Surg 2007;133:1524–1574. DOI: 10.5580/1676.
  4. Koul PA, Koul AN, Wahid A, et al. CT in pulmonary hydatid disease: Unusual appearances. Chest 2000;118(6):1645–1647. DOI: 10.1378/chest.118.6.1645.
  5. Basu A, Dhamija A, Agarwal A, et al. Ruptured pulmonary hydatid disease mimicking a lung mass: Diagnosed by flexible video bronchoscopy. BMJ Case Rep 2012;2012:bcr2012006977. DOI: 10.1136/bcr-2012-006977.
  6. Madan K, Singh N. Bronchoscopic diagnosis of pulmonary hydatid cyst. CMAJ 2012;184(2):E158. PMID: 22105751.
  7. Saygi A, Oztek I, Guder M, et al. Value of fiberoptic bronchoscopy in the diagnosis of complicated pulmonary unilocular cystic hydatidosis. Eur Respir J 1997;10(4):811–814. PMID: 9150317.
  8. Ulaş AB, Eroğlu A, Aydın Y, et al. The diagnostic value of fiberoptic bronchoscopy in ruptured lung hydatid cysts. Turk Gogus Kalp Damar Cerrahisi Derg 2019;27:350–354. DOI: 10.5606/tgkdc.dergisi.2019.17479.
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