¹UTP University of Science and Technology, Faculty of Animal Breeding and Biology, Department of Animal Physiology, Physiotherapy and Nutrition, Mazowiecka 28, 85-084 Bydgoszcz, POLAND
²Sebastian Słodki ‘SweetVet’ Bydgoszcz, Wyzwolenia 60,85-790 Bydgoszcz, POLAND DOI : 10.9775/kvfd.2020.24929 This paper describes the diagnosis and treatment of a 5-year-old Standard Schnauzer dog admitted to the clinic due to a liver failure and chronic bloody diarrhea. Based on the initial examination, no diagnosis could be made, therefore an endoscopic examination of the gastrointestinal tract was performed. The endoscopy revealed a tumor within the ostium ileocaecocolicum. Unfortunately, shortly after this procedure, a massive hemorrhage occurred, which led to the animal"s death. The necropsy confirmed the presence of the tumor. The histopathological and immunohistochemical results of the collected specimens showed a neuroendocrine tumor (NET G1) of the large intestine. In conclusion, gastrointestinal carcinoids in dogs are relatively rare and often misdiagnosed due to complex or non-specific symptomatology. Keywords : Dog, Immunohistochemistry, Large intestine, Neuroendocrine carcinoma