A 40-year-old male chimpanzee had multiple intestinal polyps associated
with immature male oxyurid parasites. The gross and histologic characteristics of these
lesions were identical to those produced by Nochtia nochti in the stomach and esophagus
of Old World primates. It was theorized that the lesions resulted from hypersensitivity to
oxyurid infection in an aberrant host.
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