KMID : 1094020230400050387
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Journal of Veterinary Clinics 2023 Volume.40 No. 5 p.387 ~ p.392
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A Case of Visceral T Cell Lymphoma with Prominent Histiocyte Infiltration in a Dog
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Kim Myung-Chul
Go Du-Min Woo Sang-Ho Oh Jeong-Seop Kim Dae-Yong Kim Na-Yon Lee Soon-Ho Jung Jae-Ha Youn Hwa-Young Kim Yong-Baek
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Abstract
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A 13-year-old intact male English Springer Spaniel presented with anorexia. Physical examination revealed a palpable abdominal mass without peripheral lymphadenopathy. Ultrasonography revealed hepatosplenomegaly and a markedly enlarged hepatic lymph node. Fine-needle aspiration of the splenic and nodal lesions revealed atypical round cells admixed with numerous histiocytes. The dog was euthanized owing to deteriorating condition despite a month of chemotherapy with lomustine. Histopathology revealed obliteration of the normal architecture of the liver, spleen, kidney, and hepatic and mesenteric lymph nodes by CD3+ neoplastic lymphocytes, accompanied by extensive F4/80+ histiocytic infiltration. This report describes a rare presentation of T-cell lymphoma with prominent histiocytic infiltration that may initially be misdiagnosed as histiocytic neoplasia in a dog.
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KEYWORD
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case report, fine needle aspiration, histiocyte, T cell lymphoma, visceral involvement
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