The main objective of this study is report the rare occurrence of metastasis of the transmissible venereal tumor (TVT) to the bladder and urethra of a mix-breed female dog, treated at the UFRPE Veterinary Hospital, through the cytological description of the lesions and the ultrasonographic aspects. Metastatic lesions were discovered due to ultrasound examination performed for patient cancer staging, in which neoplastic masses involving the urethra, bladder’s neck and body were observed, presenting heterogeneous echotexture, irregular borders and internal vascularization by color Doppler. The definitive diagnosis came through aspiration cytology, characterizing TVT with plasmacytoid pattern. The rare occurrence of metastasis in these locations is noteworthy.
