DOI QR코드

DOI QR Code

Imaging Features of Lung Lobe Torsion in Two Dogs with Typical or Atypical Initial Radiographic Signs

  • Jeong, Sulhwa (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Seo, Jeongim (Lala animal medical center) ;
  • Lee, Jinmin (Lala animal medical center) ;
  • Chang, HwaSeok (Lala animal medical center) ;
  • Choi, Mincheol (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University) ;
  • Yoon, Junghee (College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University)
  • Received : 2017.07.20
  • Accepted : 2017.12.13
  • Published : 2018.12.31

Abstract

A 7 years old, male, Afghan hound (case 1) and a 10 years old, castrated male, Pekingese (case 2) were referred with dyspnea. In case 1, thoracic radiographs showed moderate amount of pleural effusion and lobar sign in the left cranial lung lobe. Following computed tomographic (CT) examination, lung lobe torsion in left cranial lung lobe was diagnosed. In case 2, thoracic radiographs showed increased cranial lobar opacity but there was no evidence of pleural effusion. CT examination revealed an abrupt ending bronchus in the left cranial lung lobe. Based on the imaging diagnosis, left cranial lung lobectomy was performed in both cases. Case 1 showed increased lobar opacity and pleural effusion, while case 2 just showed less concrete evidence of lung lobe torsion on thoracic radiographs and marked severe chronic suppurative pneumonia was histopathologically confirmed. In conclusion, CT could be an important modality when atypical lung disease is suspicious.

Keywords

References

  1. Agut A, Carrillo JD, Seva J, Soler M, Laredo FG. What is your diagnosis? Lung lobe torsion. J Am Vet Med Assoc 2013; 243: 333-335. https://doi.org/10.2460/javma.243.3.333
  2. Choi J, Yoon J. Lung lobe torsion in a Yorkshire terrier. J Small Anim Pract 2006; 47: 557.
  3. Choi M, Lee N, Keh S, Choi H, Yim Y, Kim H, Jung J, Choi M. Usefulness of CT imaging for segmental lung lobe torsion without typical radiographic imaging in a Pomeranian. J Vet Med Sci 2015; 77: 229-231. https://doi.org/10.1292/jvms.13-0473
  4. Seiler G, Schwarz T, Vignoli M, Rodriguez D. Computed tomographic features of lung lobe torsion. Vet Radiol Ultrasound 2008; 49: 504-508. https://doi.org/10.1111/j.1740-8261.2008.00435.x
  5. Green J. Pleural space disease: Lung lobe torsion. In: Small animal Surgical Emergencies, 1st ed. Iowa: Wiley-Blackwell. 2016; 337-343.
  6. Davies JA, Snead EC, Pharr JW. Tussive syncope in a pug with lung-lobe torsion. Can Vet J 2011; 52: 656-660.
  7. Murphy KA, Brisson BA. Evaluation of lung lobe torsion in pugs: 7 cases (1991-2004). J Am Vet Med Assoc 2006; 228: 86-90. https://doi.org/10.2460/javma.228.1.86
  8. d'Anjou MA, Tidwell AS, Hecht S. Radiographic diagnosis of lung lobe torsion. Vet Radiol Ultrasound 2005; 46: 478-484. https://doi.org/10.1111/j.1740-8261.2005.00087.x
  9. Rooney MB, Lanz O, Monnet E. Spontaneous lung lobe torsion in two pugs. J Am Anim Hosp Assoc 2001; 37: 128-130. https://doi.org/10.5326/15473317-37-2-128
  10. Brown NO, Zontine WJ. Lung lobe torsion in the cat. Vet Radiol 1976; 17: 219-223. https://doi.org/10.1111/j.1740-8261.1976.tb00578.x
  11. Hansen NL, Hall SA, Lavelle R, Christie BA. Segmental lung lobe torsion in a 7-week-old pug. J Vet Emerg Crit Care 2006; 16: 215-218. https://doi.org/10.1111/j.1476-4431.2005.00179.x
  12. Schultz RM, Peters J, Zwingenberger A. Radiography, computed tomography and virtual bronchoscopy in four dogs and two cats with lung lobe torsion. J Small Anim Pract 2008; 50: 360-363.