Dear All, Attached is the *Question Sheet* for Diagnostic Exercise #*2**74, * contributed by Althea Wang, Chi Hin Ng, Viviana Gonzalez Astudillo* The University of Queensland, Veterinary Laboratory Services, School of Veterinary Science, Australia. **Corresponding author: *v.gonzalez@uq.edu.au The Diagnostic Exercises are an initiative of the Latin Comparative Pathology Group (LCPG), the Latin American subdivision of The Davis-Thompson Foundation. Members and non-members from any country of residence may contribute to these exercises. Please consider contributing a case to this initiative. It doesn't have to be unusual, and all pathology subspecialties are welcome! Please consult instructions on how to format and submit your DE at https://davisthompsonfoundation.org/diagnostic-exercises-instructions/ Previous cases are available at https://davisthompsonfoundation.org/diagnostic-exercise/