Document Type: Original Article


Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran.



Objective- In this study, ultrasonographic characteristics of lymphosarcoma in cats and also the role of fine needle biopsy were evaluated.
Design- Retrospective study.
Animals- five cats with renal lymphosarcoma tumor.
Procedures- After each of these cats was referred to the radiology department, ultrasound was performed by the radiologist from the abdominal cavity and renal symptoms was reported.
Results-In the evaluation of ultrasonography, pelvis dilatation was observed in all cats. In 4 of these cats kidney cortex were not distinct from its central section, enlargement of the kidney in 4 cases, deformed kidneys in 3 cases, decreased echogenicity of the kidneys in 3 cases and kidney echogenic increased in 2 cats were observed. In 95% of cases, lesions were bilateral.Biopsy of the kidneys was performed by fine needle aspiration in 4 cats and in the initial evaluation, the diagnosis was given in 3 cases (86%).In two cats, the diagnosis of temporary cytology was given from round neoplasia cells; in one cat, lymphosarcoma was confirmed by second aspiration and in another cat was biopsied from the tissue center. In one case, the diagnosis was followed by a necropsy.
Conclusion and Clinical Relevance-The findings indicate that the signs of ultrasound of the kidney lymphosarcoma in cats may not be highlighted, and in cases of high ultrasound characteristics, differential diagnoses should be considered. Also, biopsy for cytological tests by fine needle aspiration can be valuable in diagnosing this disease.


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