Abstracts presented at the Veterinary Cancer Society Annual Conference Kansas City, Missouri, 3–6th November 2004 : As the official journal of the Veterinary Cancer Society, Veterinary and Comparative Oncology is pleased to include these abstracts from the Annual Conference and we hope you find them informative and useful. These abstracts have not been subjected to peer review or editorial revision, however, and it would be prudent for the reader to exercise caution in the interpretation and application of the data presented.