A 7-year-old male Siberian husky was taken to a clinic for a wellness check. The dog lives in a suburban area in a house with close access to a wooden area. According to the owner, he was acting playful and eating normal. The gross fecal exam was normal and the centrifugation with sugar solution revealed the following:
Image 1 and 2: Findings of centrifugation fecal with sugar
Sarcocystis sp. oocysts.
Dogs and other carnivores are definitive hosts of Sarcocystis sp. while ruminants, horses, swine and rabbits can act as intermediate hosts. Fully sporulated oocysts are eliminated thorough the dog’s feces and the schizogony and sarcocysts formation occurs in the intermediate hosts. Definitive hosts usually do not display clinical signs but the schizogony in the endothelium of the herbivore may result in serious disease. A known pathogenic species for equids is Sarcocystis neurona with opossums acting as definitive hosts.
Have feedback on the cases or a special case you would like to share? Please email us. We will appropriately credit all submittors for any cases and photos provided.