CTVT
Canine transmissible venereal tumor (CTVT) is a contagious cancer of dogs caused by a clonal line of cancer cells that is transmitted between individuals through mating or close physical contact. It is one of the best-described naturally occurring transmissible cancers in mammals.
Origin and biology: CTVT began from a single dog's tumor and has persisted as a living cancerous
Transmission and presentation: The primary mode of transmission is sexual contact, but nonsexual transmission through licking,
Diagnosis and treatment: Diagnosis relies on cytology or biopsy showing characteristic malignant round cells with high
Prognosis and distribution: CTVT has a worldwide distribution, particularly where free-roaming dog populations are common. With