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Retrospective Study |
From the Department of Small Animal Clinical Sciences (Giraudel, Guelfi), National Veterinary School of Toulouse, 23 chemin des Capelles, 31076 Toulouse Cedex 3, France and the Croix du Sud Veterinary Clinical Practice (Pagès), 45 avenue de Toulouse, 31650 Saint-Orens de Gameville, France.
Address all reprint requests to Dr. Guelfi.
Eighteen dogs with monoclonal gammopathies were evaluated retrospectively. Most of the cases were associated with lymphoproliferative tumors (i.e., nine multiple myelomas, one Waldenströms macroglobulinemia, one lymphoma, one chronic lymphocytic leukemia, and one mucocutaneous plasmacytoma). The prevalence of nonmyelomatous monoclonal gammopathies (28%) was also significant (three leishmaniasis and two ehrlichiosis). Presenting complaints and clinical signs often were nonspecific or related to bleeding diathesis. Significant laboratory findings included proteinuria, hypoalbuminemia, and anemia. Some unusual features were also observed: a multiple myeloma with immunoglobulin M secretion, another myeloma with two narrow spikes on the electrophoretic pattern, and a mucocutaneous plasmacytoma secreting an immunoglobulin G paraprotein.
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