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Linfoma intravascular canino - aspectos clínicos, patológicos e imunohistoquímicos / Intravascular lymphoma in canine - clinical, pathological and immunohistochemical aspects

Cestari, Filipe Krasinski; Matos, Monica Regina de; Santos, Jéssica Gonçalves dos; Carvalho, Giovane Franchesco de; Montagnini, Karim Cristhine Pase; Hamamura, Márcio; Cunha, Olicies da; Viott, Aline de Marco.
Acta sci. vet. (Online); 49(suppl.1): Pub. 619, 20 mar. 2021. ilus
Artigo em Português | VETINDEX | ID: vti-31002


Background: Intravascular lymphoma (IL) is a rare disease characterized by presence of neoplastic lymphocytes in thelumen of blood vessels. Any tissue can be affected; however, the most frequently compromised areas of the body are theskin and the central nervous system (CNS). The clinical signs and macroscopic alterations caused by IL are nonspecific andare usually secondary to a continuous proliferative disorder, which leads to occlusion of the blood vessels with consequentthrombosis, hemorrhage and infarction. The objective of this work is to report a case of IL in a dog.Case: An 8-year-old male Rottweiler dog was referred to the Veterinary Hospital of the Federal University of Paraná witha history of cerebellar ataxia that had not improved after treatment. At the neurological examination, cerebellar ataxia anddeficit of nasal reflex were detected. A complete blood count showed presence of slight anemia (4.8 million red bloodcells/mm3; normal ranges= 5.5-8.5 million/mm3) and thrombocytopenia (176.000/mm3; normal ranges= 250.000-500.000/mm3). Biochemical tests revealed a small increase in alanine aminotransferase (42 IU/L; normal ranges= 14-38 IU/L) and aslight decrease in alkaline phosphatase (49 IU/L; normal ranges= 90-170 IU/L). The cerebrospinal fluid (CSF) exhibited anincreased protein concentration (147.3 mg/dL; normal ranges= 18-44 mg/dL) and pleocytosis (8 cells/µL; normal ranges=up to 5 cells/µL). No alterations were observed at radiographic and ultrasonographic exams. A clinical treatment was prescribed; however, in view of the worsening of the clinical signs, euthanasia was performed, and the body was submittedto a Laboratory of Pathology. At necropsy, moderate multifocal ulcers were observed in the oral cavity and ventral side ofthe tongue; moderately infarcted areas were detected in the spleen. Additional alterations such as fatty liver degeneration...(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1