Publicação: Peritoneal effusion in a dog secondary to visceral mast cell tumor: A case report
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BACKGROUND: Mast cell tumor, one of the most common skin tumors in dogs, may also be found in visceral sites (mainly spleen and liver). When a visceral mast cell tumor is present, neoplastic mast cells may be found in any effusion secondary to the tumor. Therefore, the diagnosis may be made by cytologic analysis of the effusion. CASE: An 8-year-old, spayed, female Siberian husky presented with a peritoneal effusion secondary to a visceral mast cell tumor. Seven months earlier, the dog had presented with a cutaneous nodule diagnosed as a well-differentiated mast cell tumor. The peritoneal fluid was classified as a transudate. Numerous neoplastic mast cells were found in the effusion. Although the mast cell tumor presented with characteristics of the well-differentiated tumor, its biologic behavior was that of a malignant tumor. CONCLUSION: Care should be taken to evaluate the prognosis of mast cell tumors in dogs since their biologic behavior is extremely variable.
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Dog diseases, Effusion, Mast cell tumor, Mast cells, Viscera, animal tissue, dog, echography, effusion, female, mastocytoma, nonhuman, peritoneal fluid, priority journal, prognosis, radiography, viscera, Abdominal Neoplasms, Animals, Ascitic Fluid, Dog Diseases, Dogs, Female, Mast-Cell Sarcoma, Animalia, Canis familiaris
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Acta Cytologica, v. 45, n. 1, p. 89-92, 2001.
