First autochthonous case of Angiostrongylus vasorum in a domestic dog in the United States.

Objective: To describe the clinical presentation, diagnostic findings, and medical management of the first suspected autochthonous case of a dog in the US diagnosed with Angiostrongylus vasorum, the French heartworm.

Animal: A 10-month-old Goldendoodle born in Oregon and residing in Washington State.

Clinical Presentation, Progression, And Procedures: The dog presented for evaluation of intermittent vomiting and diarrhea.