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18F-fluorodeoxyglucose positron emission tomography findings of peripheral nerve sheath tumour of the nasal cavity in a dog.

Dohee LeeHyejin YunTaesik YunYoonhoi KooYeon ChaeHyeyeon NamSeonggweon KangHayoon LeeDongwoo ChangMhan-Pyo YangByeong-Teck KangHakhyun Kim
Published in: Veterinary medicine and science (2023)
An 8-year-old Miniature Poodle presented with chronic sneezing and unilateral epistaxis. A left-sided intranasal mass was identified on computed tomography. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) was performed to evaluate the metabolic activity of the mass. The intranasal mass showed mildly increased 18F-FDG uptake. The maximal and mean standardized uptake values (SUVs) of the mass were 3.4 and 2.6, respectively. The maximal SUV of the mass/mean SUV of the normal liver was 2.5. The 7-cm soft, pink mass was easily removed through rhinoscopy, with subsequent dramatic improvement in clinical signs. Histopathological and immunohistochemical analyses determined that the mass was an intermediate-grade malignant peripheral nerve sheath tumour (PNST). This is the first report of 18F-FDG PET findings in a PNST in dogs.
Keyphrases
  • positron emission tomography
  • computed tomography
  • pet ct
  • peripheral nerve
  • pet imaging
  • magnetic resonance imaging
  • heart rate
  • blood pressure
  • resistance training
  • contrast enhanced
  • high intensity