Obstructive Hydrocephalus and Cardiomyopathy Secondary to Disseminated Protothecosis in a Boxer Dog.

Canine protothecosis is a rare disease caused by saprophytic unicellular achlorophyllous aerobic algae that are ubiquitous in the environment. We report a novel case of neurological and cardiological manifestations associated with disseminated protothecosis. An adult spayed female Boxer dog was presented with a 1-week history of anorexia, progressive central vestibular signs, and a Grade III/VI systolic heart murmur.