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Vol. 10, Special Issue 7 (2021)

Epidemiological studies of canine mammary gland tumors

Author(s):
Devarathnam J, Suresh Kumar RV, Bharathi S, Anand Kumar A and Jagapathi Ramayya P
Abstract:
The present study was carried out to determine the epidemiological characteristics of canine mammary gland tumours diagnosed during the period 2017-2019 at Veterinary Clinical complex, College of Veterinary Science, Proddatur. Out of 700 canine cases presented, 36 cases, diagnosed as canine mammary tumors. Age wise incidence was highest in the age group of 7-9 years (41.67%) followed by 10-12 years (33.33%) and lowest in4-6 years (19.44%). Breed wise incidence was highest in Spitz breed (61.11%), followed by Labrador (25.00%) and lowest in Mongrel (13.89%). Out of 36 cases reported for canine mammary tumors, all were females (100%). In majority of the cases (75%) only one gland was grossly involved, in 19.45% cases, two glands were involved and three glands were involved in 2.8% of cases. Involvement of inguinal mammary gland was seen in 44.44% cases, involvement of caudal abdominal mammary gland was seen in 41.67% cases and involvement of cranial abdominal mammary gland was seen in 11.11% cases. Both inguinal and caudal abdominal glands were affected in 27.8 % cases. Both inguinal and cranial abdominal glands were affected in 13.9 % cases. No involvement of cranial or caudal thoracic mammary glands was observed in the present study. Fine needle aspiration cytology revealed malignancy in all 36 cases. Ipsilateral superficial inguinal lymphnodes were involved in 20 cases. Among 36 cases, 5 cases (13.59%) were at stage I, 10 cases (27.78%) were at stage II, 2 cases (5.56%) were at stage III, 15 cases (41.67%) were at stage IV and 4 (11.11%) cases at stage V as per TNM classification. Among the various histological types identified in 36 cases, 63.88 % were adenocarcinomas, 19.44% were fibrosarcomas, 2.77% were Chondro Adenosarcomas, 5.4% were fibro adenocarcinomas, 2.7% were liposarcoma and lipoadenocarcinoma each.
Pages: 13-17  |  27 Views  5 Downloads
How to cite this article:
Devarathnam J, Suresh Kumar RV, Bharathi S, Anand Kumar A and Jagapathi Ramayya P. Epidemiological studies of canine mammary gland tumors. The Pharma Innovation Journal. 2021; 10(7S): 13-17.
The Pharma Innovation Journal