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Macroscopic PM changes suggestive of RHD

A history of multiple deaths in a household of rabbits is suggestive of RHD and a presumptive diagnosis of RHD can sometimes be made from macroscopic lesions although in many cases there may be no obvious changes. Congestion of the organs is a terminal event and can mask macroscopic changes. Conversely, abnormalities in the macroscopic appearance of the organs do not always reflect microscopic changes (Harcourt-Brown et al. 2020). Close examination of the organs may reveal changes that are suggestive of RHD and are illustrated here.