Canine transmissible venereal tumor with encephalic metastasis
DOI:
https://doi.org/10.5433/1679-0359.2013v34n6Supl2p3929Keywords:
Dog, Transmissible venereal tumor, Metastases, Encephalon, Doxorubicin.Abstract
The first case in Brazil of vaginal TVT with metastasis for the central nervous system is reported, as well as the presence of cutaneous, eye and lung metastases and describes the resistance of the TVT to treatment with vincristine. The TVT is a contagious neoplasm that occurs mainly in places where there is no dog population control, and currently, resistance of these tumor cells to conventional treatment with vincristine has been demonstrated. A mongrel female dog of about five years old, weighing 9.2 kg, with a history of vaginal bleeding for more than six months was attended. After cytological diagnosis, treatment with chemotherapy was recommended. There was resistance to chemotherapy treatment with vincristine sulfate, advocating the use of doxorubicin. It is suspected that tumor development in the central nervous system possibly occurred because the doxorubicin was not capable of crossing the hematoencephalic barrier, along with resistance to vincristine.
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