A review of research in veterinary oncology, as executed in Amsterdam
and Utrecht, is presented. Also an inquiry into the cooperation betwee
n oncologist, pathologist and practitioner is discussed. It is conclud
ed that microscopic tumour diagnosis is practized at too low a scale (
+/- 30%). Veterinary oncology has significance both from the veterinar
y and the comparative (model) point of view. Etiologic-pathogenetic an
d biologic-therapeutic aspects are studied in a multidisciplinary way.
Intercellular communication, growth factors and intercellular matrix
are items of present and future research. Molecular-genetic research i
s in progress. Prevention of mammary tumours by ovariectomy (dog, cat)
and of malignant lymphoma (cat) by fighting FeLV seems promising.