Tomographic and radiographic evaluation of stenosis/collapse of the left main bronchus in a Pug dog

Case report

Authors

  • Alexandre Longo Filho Universidade Federal do Paraná
  • Leonardo Bianchi de Oliveira Universidade Federal do Paraná
  • Cesar Augusto Novais Castanho Universidade Federal do Paraná
  • Tilde Rodrigues Froes Universidade Federal do Paraná

DOI:

https://doi.org/10.31533/pubvet.v19n02e1726

Keywords:

brachycephalic, bronchi, collapse, stenosis, radiography, computed tomography

Abstract

Stenosis/collapse of the bronchi is a condition of luminal narrowing, often associated with obstructive syndromes in brachycephalic dogs, with the pug being one of the most predisposed breeds. The most common clinical signs include dyspnea and chronic cough. Diagnosis can be achieved through bronchoscopy, radiography, and computed tomography. The described patient presented clinical signs such as nasal discharge and dyspnea. This study reports a case of stenosis/collapse of the left main bronchus, diagnosed using a combination of imaging techniques, radiography, computed tomography, highlighting the importance of a detailed evaluation of direct and indirect findings from theses imaging modalities to reach this diagnosis

References

Bottero, E., Bellino, C., Lorenzi, D., Ruggiero, P., Tarducci, A., D’Angelo, A., & Gianella, P. (2013). Clinical evaluation and endoscopic classification of bronchomalacia in dogs. Journal of Veterinary Internal Medicine, 27(4), 840–846. https://doi.org/10.1111/jvim.12096.

Clarke, D. L. (2018). Interventional radiology management of tracheal and bronchial collapse. Veterinary Clinics of North America - Small Animal Practice, 48(5), 105658. https://doi.org/10.1016/j.cvsm.2018.05.010.

Dayoung, O., Siheon, L., Seungji, K., Sangkyung, C., Mincheol, C., & Junghee, Y. (2019). Computed tomographic bronchial collapsibility values over 50% may be detected in healthy dogs. Veterinary Radiology and Ultrasound, 60(1), 1–10. https://doi.org/10.1111/vru.12692.

De Lorenzi, D., Bertoncello, D., & Drigo, M. (2009). Bronchial abnormalities found in a consecutive series of 40 brachycephalic dogs. Journal of the American Veterinary Medical Association, 235(7), 835–840.

Guillem, J. S., Schiborra, F., Rossanese, M., Maddox, T. W., & Mortier, J. R. (2022). Prevalence of bronchial wall thickening and collapse in brachycephalic dogs with and without brachycephalic obstructive airway syndrome and in nonbrachycephalic dogs. Journal of the American Veterinary Medical Association, 261(1). https://doi.org/10.2460/javma.21.10.0448.

Haimel, G., & Dupré, G. (2015). Brachycephalic airway syndrome: A comparative study between pugs and French bulldogs. Journal of Small Animal Practice, 56(12), 714–717. https://doi.org/10.1111/jsap.12408,

Hyounglok, Y., Yu, J., An, G., Bang, S., Kwon, D., Kim, H., Lee, H., Chang, J., & Chang, D. (2020). CT and radiographic evaluation of bronchial collapsibility at forced expiration in asymptomatic brachycephalic dogs. Veterinary Radiology and Ultrasound, 61(2), 1–14. https://doi.org/10.1111/vru.12829.

Hyunryung, K., Kim, Y. J., Lee, H., An, T., Yu, J., Yoon, H., An, G., Jung, J., Chang, J., & Chang, D. (2018). Computed tomographic and radiographic bronchial collapse may be a normal characteristic of forced expiration in dogs. Veterinary Radiology and Ultrasound, 59(5), 1–13. https://doi.org/10.1111/vru.12625,

Johnson, L. R., Singh, M. K., & Pollard, R. E. (2015). Agreement among radiographs, fluoroscopy and bronchoscopy in documentation of airway collapse in dogs. Journal of Veterinary Internal Medicine, 29(6), 1619–1626. https://doi.org/10.1111/jvim.13612.

Krainer, D., & Dupré, G. (2022). Brachycephalic obstructive airway syndrome. Veterinary Clinics: Small Animal Practice, 52(3), 749–780. https://doi.org/10.1016/j.cvsm.2022.01.013.

Liu, N. C., Troconis, E. L., Kalmar, L., Price, D. J., Wright, H. E., Adams, V. J., Sargan, D. R., & Ladlow, J. F. (2017). Conformational risk factors of brachycephalic obstructive airway syndrome (BOAS) in pugs, French bulldogs, and bulldogs. PLoS ONE, 12(8), e0181928. https://doi.org/10.1371/journal.pone.0181928.

Macready, D. M., Johnson, L. R., & Pollard, R. E. (2007). Fluoroscopic and radiographic evaluation of tracheal collapse in dogs: 62 cases (2001-2006). Journal of the American Veterinary Medical Association, 230(12). https://doi.org/10.2460/javma.230.12.1870.

Meola, S. D. (2013). Brachycephalic airway syndrome. Topics in Companion Animal Medicine, 28(3), 91–96.

Mitze, S., Barrs, V. R., Beatty, J. A., Hobi, S., & Bęczkowski, P. M. (2022). Brachycephalic obstructive airway syndrome: much more than a surgical problem. In Veterinary Quarterly (Vol. 42, Issue 1, pp. 213–223). https://doi.org/10.1080/01652176.2022.2145621.

Reinero, C. R., & Masseau, I. (2021). Lower airway collapse: Revisiting the definition and clinicopathologic features of canine bronchomalacia. In Veterinary Journal (Vol. 273, p. 105682). https://doi.org/10.1016/j.tvjl.2021.105682.

Sungjun, W., Ahra, L., Choi, J., Choi, M., & Yoon, J. (2015). Computed tomographic bronchioarterial ratio for brachycephalic dogs without pulmonary disease. Journal of Veterinary Science, 16(2), 221–224. https://doi.org/10.4142/jvs.2015.16.2.221.

Warwick, H., Guillem, J., Batchelor, D., Schwarz, T., Liuti, T., Griffin, S., Keenihan, E., Theron, M. L., Specchi, S., Lacava, G., & Mortier, J. (2021). Imaging findings in 14 dogs and 3 cats with lobar emphysema. Journal of Veterinary Internal Medicine, 35(4), 1935–1942. https://doi.org/10.1111/jvim.16183.

Published

2025-01-22

Issue

Section

Medicina veterinária

How to Cite

1.
Longo Filho A, Oliveira LB de, Castanho CAN, Froes TR. Tomographic and radiographic evaluation of stenosis/collapse of the left main bronchus in a Pug dog: Case report. Pubvet [Internet]. 2025 Jan. 22 [cited 2025 Apr. 2];19(02):e1726. Available from: http://ojs.pubvet.com.br/index.php/revista/article/view/3901

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