Presentation A nine-year-old spayed female Chihuahua presented after being attacked by a coyote. Photo courtesy Dr. Kendra Freeman Challenge 1) Which of the following is present in this patient? a. Pneumomediastimum b. Pneumoretroperitoneum c. Subcutaneous emphysema d. All of the above 2) The most common cause of traumatic pneumomediastinum in dogs is: a. Vehicular trauma b. Bite wounds c. High-rise syndrome d. A and B 3) Potential treatments for subcutaneous emphysema may include: a. Monitoring b. Intermittent subcutaneous drainage c. Ventral cervical exploration d. All of the above References 1. Klainbart, S., Shipov, A., Tygiel, D., Segev, G., & Kelmer, E. (2024). Retrospective evaluation of traumatic pneumomediastinum in dogs and cats (2005–2022): 52 cases. Journal of Veterinary Emergency and Critical Care, 34(3), 268-276. 2. Kramer, L. M., & Walton, K. L. (2022). Survey of current trends in the management of traumatic subcutaneous emphysema in dogs. Journal of Veterinary Emergency and Critical Care, 32(4), 549-554.