Case Report: 18F-FDOPA PET in the clinical management of a dog with an intraventricular tumor suspected to be choroid plexus papilloma
View abstract on PubMed
Summary
This summary is machine-generated.This case study highlights the first use of 3,4-dihydroxy-6-[18F]fluoro-l-phenylalanine positron emission tomography/computed tomography (18F-FDOPA PET/CT) in a dog with an intraventricular brain tumor. Increased metabolic tumor volume on follow-up 18F-FDOPA PET/CT indicated a poor prognosis despite decreased lesion size.
Area Of Science
- Veterinary Neurology
- Canine Oncology
- Diagnostic Imaging
Background
- Intraventricular brain tumors in dogs present diagnostic challenges.
- 3,4-dihydroxy-6-[18F]fluoro-l-phenylalanine positron emission tomography/computed tomography (18F-FDOPA PET/CT) is an emerging imaging modality.
Observation
- A Miniature Poodle with neurological deficits was diagnosed with an intraventricular mass, suspected to be a choroid plexus papilloma (CPP).
- Initial 18F-FDOPA PET/CT showed a hypermetabolic intraventricular mass.
- Follow-up 18F-FDOPA PET/CT after chemotherapy revealed increased metabolic tumor volume (MTV) despite decreased lesion size on CT.
- Clinical signs worsened, and the dog survived for 186 days.
Findings
- The study reports the first use of 18F-FDOPA PET/CT in a canine intraventricular brain tumor.
- Increased MTV on follow-up 18F-FDOPA PET/CT correlated with poor prognosis and limited survival.
- This imaging technique provided valuable insights into tumor response to chemotherapy.
Implications
- 18F-FDOPA PET/CT can aid in the diagnosis and prognosis of canine intraventricular brain tumors.
- Changes in MTV detected by 18F-FDOPA PET/CT may predict treatment outcomes in veterinary oncology.
- This case underscores the utility of advanced imaging in veterinary neuro-oncology.
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