Abstract
<i>Baylisascaris procyonis</i>Infection in Elderly Person, British Columbia, Canada
Highlights
To the Editor: Baylisascaris procyonis is an ascarid roundworm that commonly parasitizes the intestine of North American raccoons [1,2]
We report the case of a 73-yearold female nursing home resident with a 10-year history of moderately severe Alzheimer-type dementia
Sections of deep white matter from the left frontal lobe showed a small number of lesions, each consisting of a single larval nematode surrounded by mild chronic reactive changes and inflammation (Figure, panel A)
Summary
To the Editor: Baylisascaris procyonis is an ascarid roundworm that commonly parasitizes the intestine of North American raccoons [1,2]. Despite the apparent potential for human disease, to our knowledge, only 20 cases of B. procyonis NLM have been reported [1,4,5,6]. The only previously reported case of B. procyonis NLM in an adult was in a developmentally disabled 21-yearold adult known to exhibit geophagia and pica [4].
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