Sankar, PRamya, RMohamed Ali, MGTANUVAS2020-01-102020-01-102016-07http://krishikosh.egranth.ac.in/handle/1/5810140175TNV_INPLVT_2016_17(2)543-545A Mongrel dog was presented with history of persistent bilateral epistaxis and dyspnea. Physical examination revealed characteristic hard mass irregularly distributed in nasal cavity. Blood samples were collected for haematology and biochemistry examinations and found within normal limits. Based on clinical examination and fine needle aspiration cytology, the case was diagnosed as transmissible veneral tumor with abundant vacuolated cytoplasm containing fine nuclear chromatin pattern, large round cells with round nuclei. The dog was treated with intravenous administration of Vincristine sulphate in four weekly doses leading to complete regression of lesions.enVeterinary ScienceArticle