Peer-reviewed veterinary case report
How well scar needle tests predict mast cell tumor return in dogs
By Lee, Christopher E et al.·Published in The Canadian veterinary journal = La revue veterinaire canadienne·2021·Auburn University, United States·View original on PubMed →
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Original publication title: Predictive ability of fine-needle aspirate cytology for incompletely resected mast cell tumor surgical sites.
- Species:
- dog
Plain-English summary
A group of dogs with incompletely removed mast cell tumors (a type of skin cancer) had fine-needle aspirate cytology (a test where a needle is used to take a sample from the tumor site) performed within 60 days after surgery. The results showed that 13.8% of these dogs had a recurrence of the tumor. The test was quite accurate, with a 93.5% chance of correctly identifying dogs without remaining cancer at the surgical site. This means that if the test showed no cancer, it was likely that the dog was in good shape, helping vets determine if further treatment was needed.
People also search for: dog mast cell tumor recurrence · fine-needle aspirate cytology for dogs · mast cell tumor surgery outcome
Abstract
The goal of this study was to evaluate whether fine-needle aspirate cytology of a previous surgical site was predictive of recurrence for incompletely excised mast cell tumors (MCTs). Electronic medical records were searched for dogs diagnosed with MCTs; those with histologically confirmed, incompletely resected MCTs evaluated by scar aspiration cytology within 60 days after surgery were included for analysis. Variables were compared between groups using Fisher's exact test and logistic regression. Twenty-nine cutaneous and 7 subcutaneous tumors were evaluated. Local recurrence, confirmed by either histopathology or cytology, occurred in 13.8% of cases. No significant differences were identified for any variables other than surgical site cytology status. The negative predictive value of surgical site aspirate cytology without residual mast cell tumor was 93.5%, with an overall predictive accuracy of 88.9%. For the dogs evaluated in this report, surgical site aspiration cytology was predictive of local disease control for incompletely resected MCTs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/33542552/