Bartonella and sarcocystis in a cat with neurological signs

A new paper from NCSU VBDDL and Neurology documents the story of a 6-year-old male neutered domestic longhair cat seen through NCSU Neurology.

The cat was rescued at about 5 months of age and had a history of anisocoria (with the right pupil smaller than the left) since then, as well as laryngeal paralysis diagnosed about a year ago and Horner’s sydrome for about a week. About 3 weeks prior to presentation, his anisocoria switched sides so that his left pupil was now smaller than his right. At his visit he had eosinophilia, hyperglobulinemia with a polycloncal gammopathy, and bilateral chorioretinitis. When rechecked 3 days later, his anisocoria had switched sides again, consistent with spastic pupil sydrome.