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Year 1981 - Volume 1, Number 1
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Colangiocarcinomas em gatos com parasitismo de dutos biliares por Platynosomum fastosum, p.31-36
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ABSTRACT.- Santos J.A., Lopes M.A.F., Schott A.C., Santos A.E., Porfirio L.C. & Passos L. 1981. [Cholangiocellular carcinoma with biliary parasitism by Platynosomum fastosum.] Colangiocarcinomas em gatos com parasitismo de dutos biliares por Platynosomum fastosum. Pesquisa Veterinária Brasileira 1(1):31-36. Depto Patologia, Universidade Federal Fluminense, R. Vital Brasil Filho 64, Niterói, RJ 24230, Brazil.
This is the first description of adenocarcinomas of the bile ducts of the cat (Felix cattus domesticus), naturally infected with the parasite Platynosornum fastosurn. The studies were based on four old female cats. The authors hypothesize a relationship between the parasites and the neoplasms, which is suggested by the appearance of neoplasms at the sites of parasitism. In a series of neoplasms diagnosed in cats in Brazil over a 20 year period by the authors, only 5 were primary to the liver, 4 of those being the duct carcinomas described. These findings are analagous to those reported in humans, cats and dogs parasitized by Clonorchis sinensis or Opistorchis felineus. The relatively advanced age of the animals studied and the long survival of certain trematodes in the biliary ducts indicate a chronic state of the lesions and their subsequent development into cancer. |
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