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Morphofunctional features of mammary gland neoplasms in bitches of various breeds

https://doi.org/10.32786/2071-9485-2023-03-31

Abstract

The article is devoted to the study of breast cancer in dogs - a common oncological disease in veterinary medicine. The paper analyzes in detail the factors predisposing to the development of this disease and the effect of the tumor on the functioning of the pet's body. The methods of classification and diagnosis of the tumor, including puncture biopsy and photofixation, are described. Histological examination of the breast and adjacent tissues is performed. The results of the study indicate that adenomatosis in dogs is more common than other pathologies and may be associated with various disorders in the sexual cycle.

Introduction. Breast cancer in dogs makes up a significant proportion of all cancers, so this type of tumor requires careful and detailed study. Predisposing factors play an important role in the occurrence of tumors. The disease is characterized by a violation of all vital functions of the animal's body.

Materials and methods. Mammary tumors in bitches were classified according to the TNM system (8th edition, 2017) as follows: T3 – tumor about 6 cm; N0 – regional lymph nodes cannot be palpated; M0 – no signs of distant metastases. Puncture at the sites of tumors was taken using standard selection methods using the puncture biopsy technique, and photographic recording was performed. Puncture at the sites of tumors was taken using standard selection methods using the puncture biopsy technique, and photographic recording was performed. For histological examination, a fragment of the mammary gland with a pathological area of skin, a nipple with adjacent tissues and a lymph node was taken.

Results and conclusions. Adenomatosis in bitches occurs much more often (19 cases) than other mammary gland pathologies and can be associated with disruption of the reproductive cycle in bitches of various breeds of dogs for a number of reasons - changes in hormonal levels, concomitant diseases, lack of mating, etc.

About the Authors

N. A. Tatarnikova
Perm State Agrarian and Technological University named after Academician D. N. Pryanishnikov
Russian Federation

Tatarnikova Natalia Aleksandrovna, Doctor of Veterinary Sciences, Professor

Russia, 614045, Perm, Petropavlovsk str., 23



C. A. Sidorova
State Agrarian University of the Northern Trans-Urals
Russian Federation

Sidorova Claudia Alexandrovna, Doctor of Biological Sciences, Professor

Russia, 625003, Tyumen, Republic str., 7



O. V. Kochetova
Perm Institute of the Federal Penitentiary Service
Russian Federation

Kochetova Oksana Valeryevna, Doctor of Veterinary Sciences, Professor

RF, 614012, Perm, ul. Karpinsky, 125



T. A. Yurina
State Agrarian University of the Northern Trans-Urals
Russian Federation

Yurina Tatiana Aleksandrovna, Candidate of Biological Sciences, Associate Professor

Russia, 625003, Tyumen, Republic str., 7



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For citations:


Tatarnikova N.A., Sidorova C.A., Kochetova O.V., Yurina T.A. Morphofunctional features of mammary gland neoplasms in bitches of various breeds. Title in english. 2023;(3 (71)):306-314. (In Russ.) https://doi.org/10.32786/2071-9485-2023-03-31

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