Disseminated <i>Penicillium labradoris</i> (synonym: <i>P. labradorum</i>) in three dogs from Western Australia

This series underscores the variability of P. labradoris presentations in dogs and highlights potential for successful long-term management with posaconazole therapy. Serial biomarker determinations and therapeutic drug monitoring play a crucial role in guiding treatment. These cases suggest intriguing aspects of pathogen virulence and potential genetic susceptibility in individual unrelated dogs. Although this fungal species is present in the US, France, and Brazil, it is of great interest that all three Australian cases were from Perth, Western Australia.