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Patel RT Caceres A French AF McManus PM 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2005,34(4):341-352
BACKGROUND: There is limited published information regarding feline multiple myeloma. Diagnostic criteria are derived from canine studies and to our knowledge, have not been critically reviewed for cats. OBJECTIVE: To evaluate the clinical and laboratory findings in cats with multiple myeloma and appraise diagnostic criteria. METHODS: Retrospective evaluation of medical records was performed. Inclusion required an antemortem diagnosis of multiple myeloma using 2 of 4 criteria: 1) >or=20% plasma cells in the bone marrow, or >or=10% if atypical plasma cells; 2) paraproteinemia; 3) radiographically-evident osteolysis; 4) light chain proteinuria. Alternatively, a postmortem diagnosis was based on the findings of multiple plasma cell neoplasms, with marrow involvement. RESULTS: Sixteen cats were diagnosed with multiple myeloma between 1996 and 2004, with a median age of 14.0 years; 9 of 16 (56%) were castrated males, and 7 of 16 (44%) were spayed females. Laboratory abnormalities included hyperglobulinemia (14/16, 87.5%), with 11/14 (78.5%) monoclonal and 3/14 (21.4%) biclonal gammopathies; hypoalbuminemia (4/16, 25%); light chain proteinuria, (4/9, 44.4%); hypocholesterolemia (11/16, 68.7%); hypercalcemia, (3/15, 20%); nonregenerative anemia, (11/16, 68.7%); regenerative anemia, (1/16, 6.2%); neutropenia (5/15, 33.3%); thrombocytopenia (8/16, 50%); and marrow plasmacytosis (14/15, 93.3%). Plasma cells were markedly immature, atypical, or both in 10 of 12 (83.3%) cats. Focal or multifocal osteolysis was noted in 6 of 12 (50%) cats for which radiographs were available for review; generalized osteopenia was found in 1 (8.3%) cat. Noncutaneous, extramedullary tumors were found in all cats assessed, 7/7 (100%), including spleen (6), liver (3), and lymph nodes (4). The disease in 1 of 2 cats with cutaneous tumors progressed to plasmacytic leukemia. CONCLUSIONS: Common findings in feline multiple myeloma include atypical plasma cell morphology, hypocholesterolemia, anemia, bone lesions, and multi-organ involvement. Based on the results of this study, we advocate modifying diagnostic criteria in cats to include consideration of plasma cell morphology and visceral organ infiltration. 相似文献
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Florian Zeugswetter Miriam Kleiter Birgitt Wolfesberger Ilse Schwendenwein Ingrid Miller 《Journal of veterinary science (Suw?n-si, Korea)》2010,11(4):359-361
An 8-year-old male Austrian Pinscher and a 14-year-old male Golden Retriever were presented for evaluation due to unexplainable high fructosamine values despite euglycemia and epistaxis in combination with polydipsia/polyuria, respectively. Blood analysis revealed severe hyperglobulinemia, hypoalbuminemia and markedly elevated fructosamine concentrations in both dogs. Multiple myeloma with IgA-monoclonal gammopathy was diagnosed by serum and urine electrophoresis including immunodetection with an anti-dog IgA antibody and bone marrow aspirations. Diabetes mellitus was excluded by repeated plasma and urine glucose measurements. Fructosamine values were positively correlated with globulin, but negatively correlated with albumin concentrations. These cases suggest that, as in human patients, monoclonal IgA gammopathy should be considered as a possible differential diagnosis for dogs with high fructosamine concentrations. 相似文献
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Kristensen AT Klausner JS Weiss DJ Schultz RD Bell FW 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1991,20(2):45-48
Spurious hyperphosphatemia was diagnosed in a 6-year-old, neutered female, mixed-breed dog with chronic lymphocytic leukemia associated with an IgM monoclonal gammopathy. The spurious hyperphosphatemia was probably caused by paraprotein precipitation which interfered with the ASTRA 8 automated analyzer measurements. Serial dilutions of the sample did not change the phosphorus value. Another analyzer system in which a protein-free sample was prepared prior to analysis gave a normal serum phosphorus concentration. There was a linear relationship between the amount of paraprotein and the measured total serum inorganic phosphate (r=0.75). A review of 700 chemistry profiles from dogs and cats and a review of 36 cases with polygonal gammopathy and 6 cases with monoclonal gammopathy did not reveal other cases of spurious hyperphosphatemia. 相似文献
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