Ultrasonographic examination in the diagnosis of small intestinal tumors in cats and dogs

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The aim of the study is to determine the ultrasound signs most characteristic of neoplasms of the small in-testine of cats and dogs. The objects of the study were 25 cats and 6 dogs of various breeds and ages. At the time of the ultrasonographic examination of the abdominal organs, these animals had ultrasound signs characteristic of a tumor of the small intestine, or a suspicion of a neoplasm was noted, later an accurate diagnosis was established by histological examination of full-wall biopsy specimens of the small intestine. Ultrasound examination was performed after keeping the animals on a starvation diet for 8–12 hours on ul-trasound scanning devices Mindray Vetus 7 and Mindray DC-T6 (China). Linear and microconvex sensors were used for the study. Ultrasound signs characteristic of focal neoplasm of the intestine were determined: violation of differentiation of intestinal layers with complete coherence of the organ structure; significant thi-ckening of the intestinal wall; presence of a volumetric formation of a heterogeneous structure of various si-zes and shapes; absence of peristalsis in the affected part of the intestine; filling of the intestinal lumen with liquid contents mixed with suspended matter; increased echogenicity of surrounding tissues; lymphadenopa-thy of the mesenetheric lymph nodes. Diffuse lesion of the intestinal wall in 9 cases (53 %) had inflammatory etiology, while 8 cases (47 %) had oncological. Thickening of the small intestine affected by the tumor was more pronounced, the thickness of the duodenum was (0.37 ± 0.06) cm, jejunum – (0.34 ± 0.02) cm, ileum – (0.37 ± 0.03) cm. In inflammatory bowel disease, the following values were established: duodenum – (0.34 ± 0.03) cm, jejunum – (0.31 ± 0.03) cm, ileum – (0.31 ± 0.02) cm. A distinctive ultrasound sign for a tumor with diffuse damage was the complete lack of differentiation of the layering of the intestinal wall.

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Tumors of the small intestine of animals, cats, dogs, ultrasound examination, oncology in cats, oncology in dogs, pathology in cats, pathology in dogs

Короткий адрес: https://sciup.org/140309739

IDR: 140309739   |   DOI: 10.36718/1819-4036-2025-4-187-200

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