Canine transmissible venereal tumor: a large-animal transplantable tumor model.

The canine transplantable venereal tumor is a naturally occurring transplantable round-cell tumor in dogs. Although experimental transplantable tumor models in rodents and rabbits are readily available, a reliable transplantable tumor model in a large animal that more closely resembles the physical dimensions of humans has not been available. A tumor model in a large animal would have a wide range of biomedical research applications, including the study of various interventional imaging techniques.