In 2020, Ana Ortiz, Cinzia Allegrucci and Kerstin Baiker were awarded BSAVA PetSavers’ funding to investigate the expression of ß-adrenergic receptors (ß-AR) in canine haemangiosarcoma (HSA). Former master’s student and anatomic pathology resident Kian Guerzoni, and more recent master’s student and anatomic pathology resident Marta Pereira also joined the research team. This study aims to be a baseline investigation towards the potential benefit of using non-selective ß-AR antagonists in the management of canine HSA.