Volume: 53 Issue: 1
Year: 2022, Page: 85-88, Doi: https://doi.org/10.51966/jvas.2022.53.1.85-88
Received: June 21, 2021 Accepted: July 11, 2021 Published: March 31, 2022
The incidence of mammary neoplasms is more in dogs when compared to other animals. Mammary neoplasms are among the most prevalent type of tumours in bitches, followed by skin tumours. Canine mammary tumour (CMT) and human breast cancer (HBC) have clinical and molecular similarities, making CMT a good model to study HBC. A study was conducted on 25 cases of CMT in bitches which were presented during a period from March 2019 to March 2020 to University Veterinary Hospitals at Mannuthy and Kokkalai. Tumours were histologically classified basically into carcinoma, sarcoma, carcinosarcoma, benign tumour and further its subtypes were identified. Out of total 25 CMTs, only one case was identified as benign, while all the other cases were found to be malignant. Modified Elston and Ellis grading method was used for histological malignancy grading of CMT. Histological malignancy grading done in 23 cases revealed grade I (30.43 per cent), grade II (60.87 per cent) and grade III (8.7 per cent) malignancy. Sixty-five per cent of simple carcinomas, which included ductal carcinoma, tubulo-papillary carcinoma, solid carcinoma, comedocarcinoma and cribriform carcinoma, were either grade II or III, while all the mixed tumours were grade II. The present study revealed that histological malignancy grading could be used as a tool for predicting prognosis of CMT
Keywords: Canine mammary tumour, histological classification, grading
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© 2022 Arun et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Christy, M.J., Sajitha, I. S., Devi, S. S., Dhanush, K. B. and Sudheesh, S. N. 2022. Study on histopathological subtypes and grading of canine mammary tumours. J. Vet. Anim. Sci. 53(1): 85-88
DOI: https://doi.org/10.51966/jvas.2022.53.1.85-88