Thromb Haemostasis
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Conventional laboratory methods were used to screen untreated tumor-bearing dogs for hemostatic abnormalities. Excluded from study were dogs with clinical evidence of bleeding. The primary site for neoplastic disease in 100 dogs studied included hemolymphatic system, skin, bone, thyroid gland, oropharynx, mammary gland, and nasal cavity. ⋯ Sixteen dogs had positive protamine sulfate (paracoagulation) reaction, and 8% had increased plasma fibrin degradation products. The euglobulin lysis time was accelerated in 24% of the dogs, and 15% had schistocytes on blood film. These data indicate that the majority of dogs with advanced neoplasms are likely to have abnormal coagulation tests.