Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Frontonasal Bone Flap for Treating a Paranasal Sinus Cyst Diagnosed by CT in a Thoroughbred Racehorse

  • HeeEun Song (Department of Veterinary, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University) ;
  • Eun-bee Lee (Department of Veterinary, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University) ;
  • Kyung-won Park (Department of Veterinary, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University) ;
  • Seyoung Lee (Department of Veterinary, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University) ;
  • Yong-woo Chun (J&C Equine Hospital) ;
  • Chull-gyu Park (J&C Equine Hospital) ;
  • Hyohoon Jeong (Department of Veterinary, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University) ;
  • Jong-pil Seo (Department of Veterinary, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University)
  • Received : 2023.03.03
  • Accepted : 2023.06.12
  • Published : 2023.06.30
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Abstract

A 3-year-old Thoroughbred gelding was referred to the Jeju National University Equine Hospital with prolonged unilateral nasal discharge for several months. A sinus cyst was suspected based on the history, symptoms, endoscopic findings, and radiographic results. Computed tomography (CT) scan revealed that the cyst (7.5 × 8.0 × 10.0 cm) was located between the rostral maxillary sinus and the frontal sinus, causing distortion and remodeling of the overlying bones, swelling of the overlying cutaneous tissues, and a slight deviation of the nasal septum. Standing surgery under sedation was decided to remove the cyst. A frontonasal bone flap was performed using an oscillating bone saw, and the cyst filled with pus was removed. To support the approach to the maxillary sinus, trephination was performed. The horse was treated with sinus lavage via catheterization, nebulization, antibiotics, and nonsteroidal anti-inflammatory drugs. The horse was discharged 18 days after the surgery without signs of any complication. This case showed that a CT scan could be a valuable tool for the diagnosis and subsequent surgical management of paranasal sinus cysts in horses. Also, the frontonasal bone flap was useful for exposing and removing the large-sized of cyst in the paranasal sinus.

Keywords

References

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