STEFANO COMAZZI DVM, phD, dipl ECVCP, Milan, Italy Diplomate European College of Veterinary Clinical Pathology (ECVCP) is associate professor at Department of Veterinary Medicine, University of Milan (Italy). His scientific activity deals with topics of Veterinary Clinical Pathology, focused on hematopoietic diseases and flow cytometric aspects in veterinary species. Past President of the European Society of Veterinary Clinical Pathology (ESVCP) he is author of more than 250 contributions to journals or scientific meetings, by which more than 100 papers on international peer reviewed journals and several international book chapters, including the VI and VII editions of Schalm’s Veterinary Hematology. He is current chairing the working group in diagnostic of the European Canine Lymphoma Network, collecting all major European experts on canine lymphoma and he is the current co-Editor –in-Chief of the international journal “Veterinary and Comparative Oncology” ranked among the top 25% Veterinary journals.