Canine von Willebrand's disease. A heterogeneous group of bleeding disorders |
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| Authors: | G S Johnson M A Turrentine K H Kraus |
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| Institution: | Department of Veterinary Pathology, University of Missouri College of Veterinary Medicine, Columbia. |
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| Abstract: | The term "von Willebrand's disease," refers to a group of inherited bleeding disorders, all of which are caused by a deficiency of the multimeric plasma glycoprotein, von Willebrand factor. The various forms of canine von Willebrand's disease can be categorized into one of three major types: in type I canine von Willebrand's disease, all sizes of von Willebrand factor multimers can be detected in the plasma; in type II canine von Willebrand's disease, only the smaller von Willebrand factor multimers are found in the plasma (larger multimers are absent); and in type III canine von Willebrand's disease, von Willebrand factor is completely absent from the plasma or present in only trace amounts. Von Willebrand's disease is common in dogs, but some forms of the disease are so mild that they are of questionable clinical significance. |
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