PATHOLOGICAL AND MOLECULAR DIAGNOSIS OF CANINE TUMOURS
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Date
2022
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TANUVAS, CHENNAI
Abstract
The present work was carried out to evaluate the application of cytology,
histopathology and molecular markers in the diagnosis of canine tumours. Out of 44
samples collected, 41 (93.18%) were of neoplastic origin and 3 of non-neoplastic
origin. Malignant tumours (85.37%) recorded were strikingly higher than benign
tumours. Non-descript (39.0%) were predominantly affected followed by Labrador
(22.0%) and Spitz (17.1%) breeds. Dogs within the age group of 5 to 10 years were
more prone to tumours. The mean age of occurrence of neoplasm was 6.23 years.
More than 50% of the affected animals were females. Genital organs (34.2%) showed
higher incidence of tumours followed by mammary glands (26.8%) and skin (17.1%).
Histopathological diagnosis revealed more sensitivity than cytology. Based on
histopathology and cytology, the most common tumour recorded was
transmissiblevenereal tumours(29.27%) followed by mammary carcinomas (26.83%),
papillomas (9.76%), mast cell tumours (7.32%), lymphomas (4.87%), squamous cell
carcinoma, basal cell carcinoma, nasal adenocarcinoma, collision tumour, fibroma,
ossifying fibrosarcoma, lipoma, liposarcoma and rhabdomyosarcoma (each 2.44%).