This full day in-person master class in comparative pathology will be lead by the Registry's Dr Heather Fenton, joined by renowned international colleagues. Participants interested in sharing a case are encouraged to contact the Registry at arwh@taronga.org.au (slides will need to be received, preferably in digital format, prior to 1 December 2023). Participants will be required to bring their own PC or Mac for viewing digital slides during the class. Lunch will be provided. Please let us know if you have any special dietary requirements by emailing us at arwh@taronga.org.au so that we can cater for you appropriately.