Protothecosis in a Dog

Abstract

This is the first report of a spontaneous case of protothecosis in the dog, an infection with organisms of the algal genus Prototheca. Clinically the animal had chronic bilateral iritis accompanied by glaucoma of one eye and hypotony of the other, chronic nephritis, arthritis, and bloody diarrhea. Lesions containing the algae occurred in myocardium, liver, kidneys, para-adrenal connective tissue, brain, and eyes.