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Vol. 9, Special Issue 4 (2020)

Retrospective studies on canine mammary neoplasm in dogs over a period of four years (2014-2018)

Author(s):
Senthil NR, Chakravarthi R and Vairamuthu S
Abstract:
The present work was based on retrospective study of 386 biopsies of dogs received over a period of four years (2014 to 2018) in and around Chennai at Madras Veterinary College, Chennai-600 007, out of which 99 biopsies (25.64%) were reported positive for Canine Mammary Neoplasm. The sex-wise distribution revealed higher incidence in intact bitches 80.2% (77 cases), followed by bitches neutered after 3 years of age 16.7% (16 cases), followed by bitches neutered before 3 years of age 3.1% (3 cases) in total accounting for 96 cases in bitches (96.9%) and in dogs 3 cases were reported (3.1%). Maximum number of cases were 57 cases (57.6%) in the age group of 5-10 years followed by 32 cases (32.3%) in above 10 years and 10 cases (10.1%) in 0-5 years. The incidence of Canine Mammary Neoplasm was highest in Labrador retriever with 32 cases (32.32%),followed by Non-descript Dogs (ND) with 24 cases (24.32%), Spitz with 19 cases (19.19%), Doberman with 12 cases (12.12%) and German Shepherd (GSD) with 5 cases (5.05%), Great Dane with 3 cases (3.03%) followed by Pug, Dachshund and Lhasa Apso 1 case each (1.01%) respectively. The gland-wise occurrence of canine mammary neoplasm was studied in 99 cases in which the incidence of neoplasm in right chain of mammary gland is 45% and in left mammary gland chain is 55%. Out of 96 bitches 57 cases (59.4%) shown single gland involvement, 22 cases (22.9%) shown involvement of 2 glands, 13 cases (13.5%) shown involvement of three glands and 5 cases (5.2%) shown involvement of 4 glands. In dogs all the 3 cases reported have single gland involvement. The most commonly affected pair of gland is inguinal mammary gland (41.7%), followed by caudal abdominal mammary gland (41.1%), caudal thoracic mammary gland (7.9%), cranial abdominal mammary gland (5.2%) and cranial thoracic mammary gland (4.3%) respectively. This study enlightens the sex-wise, breed-wise, age-wise and gland-wise epidemiology of canine mammary neoplasm which helps for a veterinary physician to diagnose and treat canine mammary neoplasm cases effectively.
Pages: 228-231  |  569 Views  122 Downloads
How to cite this article:
Senthil NR, Chakravarthi R and Vairamuthu S. Retrospective studies on canine mammary neoplasm in dogs over a period of four years (2014-2018). The Pharma Innovation Journal. 2020; 9(4S): 228-231.

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