Journal of Veterinary Medical Science
Online ISSN : 1347-7439
Print ISSN : 0916-7250
Clinical Characteristics and Prognostic Factors in Dogs with Histiocytic Sarcomas in Japan
Masashi TAKAHASHIHirotaka TOMIYASUEri HOTTAHajime ASADAKenjiro FUKUSHIMAHideyuki KANEMOTOYasuhito FUJINOKoichi OHNOKazuyuki UCHIDAHiroyuki NAKAYAMAHajime TSUJIMOTO
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ジャーナル フリー 早期公開

論文ID: 13-0414

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Canine histiocytic sarcoma (HS) is a rare neoplasm that originates from dendritic cells or macrophages, and there have been a number of cases experienced in Japan. To identify the characteristics and prognostic variables that determine outcome in dogs with HS in Japan, medical records of 73 dogs with HS were retrospectively analyzed. Signalment, clinical signs, complete blood count (CBC), blood chemistry profiles, treatment, response to treatment and overall survival (OS) were analyzed. Diagnosis of HS was determined histologically in 44 cases and cytologically in 29 cases. The most frequently diagnosed breeds were Flat-Coated Retrievers (n=16, odds ratio [OR] 62.0), Pembroke Welsh corgis (n=15, OR 9.7) and Bernese Mountain dogs (n=14, OR 45.0). Median survival time for all dogs in this study was 43 days. In the dogs that received no treatment or only symptomatic treatment, the median OS was 12 days (range 2–254 days) compared with that of dogs that received surgical treatment and/or chemotherapy (85 days, range 4–360 days). Univariate analysis identified anemia, thrombocytopenia, hypoalbuminemia, hypoproteinemia and not receiving antitumor treatment (chemotherapy and/or surgery) as factors significantly associated with shorter OS. Multivariate analysis confirmed that platelet counts, localized/disseminated lesional pattern and whether the dog received antitumor treatment were significantly predictive of survival.

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