Peer-reviewed veterinary case report
Accuracy of needle biopsy for diagnosing cat mammary tumors
By R. Simeonov·Published in Bulgarian Journal of Veterinary Medicine·2024·Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria, BG·View original on DOAJ →
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Original publication title: Correlation between fine-needle aspiration biopsy and routine histopathology in the diagnosis of spontaneous feline mammary gland tumours
- Species:
- cat
Plain-English summary
A cat with a lump in her breast was diagnosed with a mammary gland tumor using a fine-needle aspiration biopsy, which is a quick procedure that involves taking a small sample from the lump. The biopsy results were accurate in 92.5% of cases when compared to traditional tissue examination. This method was particularly effective for identifying malignant tumors, with a high sensitivity rate of 95.23%. The cat's diagnosis helped guide her treatment plan, and early detection is crucial for better outcomes in cases of mammary tumors.
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Abstract
The present study evaluated the correlation between fine-needle aspiration biopsy and routine histo-pathological examination in the diagnosis of spontaneous mammary gland tumours in cats. From the studied 120 neoplastic growths, cytological diagnosis was correct in 111 cases (92.5%), and incorrect in 9 (7.5%) patients. Out of all studied tumours, 3 false positive (2.5%) and 6 false negative (5%) results were found out. Among benign tumours, cytological diagnosis was correct in 17 cases (94.44 %). Only one false negative diagnosis was demonstrated (5.56% of all benign tumours). As to malignant tumours, cytological diagnosis was correct in 94 (92.15%), and incorrect in 8 patients (7.85%). For diagnostics of feline mammary neoplasms, the sensitivity of cytology was 95.23%, the specificity 75%, positive predictive value: 97.5% and negative predictive value: 60% compared to routine histopathology. The analysis with Cohen’s kappa test showed agreement of 99.17% (Cohen’s κ 0.96) between cytology and histopathology for benign and 94.17% (Cohen’s κ 0.75) for malignant mammary neoplasms.
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Search related cases →Original publication on DOAJ: https://doi.org/10.15547/bjvm.2438