Prevalence and type of splenic diseases in cats: 455 cases (1985-1991)
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Summary
Retrospective data on the type and prevalence of splenic disease in cats were evaluated in a large number of feline splenic tissues (n = 455) submitted as surgical and necropsy specimens from private veterinary hospitals in California during a period of approximately 5.5 years. Primary and metastatic neoplasia accounted for 37% of all feline splenic lesions. Mastocytoma, lymphosarcoma, myeloproliferative disease, and hemangiosarcoma, in that order, accounted for the bulk of neoplasia. Submission of accessory splenic tissue from either the omentum or pancreas accounted for 4% (17/455), whereas hyperplastic nodules, hematomas, and the combination of these changes in the spleen accounted for 4% (19/455). Splenitis was found in 2% (8/455) of submissions. Thromboembolism with regional splenic infarction accounted for 1% (4/455) of splenic lesions in cats. The remaining splenic lesions each accounted for < 1% of total splenic submissions, and as such, were considered incidental and of questionable clinical importance.
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