Dear All, Attached is the *Question Sheet* for Diagnostic Exercise #*277, *contributed by Constanza A. Rodriguez MV,1 Jaime Weisman DVM, MS,2 Francisco R Carvallo MV, DSc, DACVP.3 1School of Veterinary Medicine, Universidad Austral de Chile, Valdivia, Chile. 2Virginia Department of Agriculture and Consumer Services, Richmond, VA. 3Virginia Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA. *Corresponding author*: fcarvallo@vt.edu 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 does not have to be unusual, and all pathology sub-specialties 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/