| diagnostic morphology of four larval ascaridoid nematodes that may cause visceral larva migrans: toxascaris leonina, baylisascaris procyonis, lagochilascaris sprenti, and hexametra leidyi. | the gross and histological morphology of the larvae of 4 ascaridoid nematodes, toxascaris leonina, baylisascaris procyonis, lagochilascaris sprenti, and hexametra leidyi, are described. the larvae of t. leonina, b. procyonis, and l. sprenti were recovered from experimentally infected mice at 32, 14, and 75 days of infection, respectively. hexametra leidyi larvae used for morphological study were collected on day 159 postinfection from a rhesus monkey, macaca mulatta, while h. leidyi larvae used ... | 1987 | 3437356 |
| visceral and neural larva migrans in rhesus macaques. | large ascarid larvae within granulomas were noted histologically in the mesenteric and pancreatic lymph nodes of 13 of 21 rhesus macaques (macaca mulatta) euthanized as part of an experimental viral pathogenesis study. in addition, 7 of the 13 monkeys had cerebral granulomas, which in 4 animals contained nematode larvae similar to those within the lymph nodes. despite the lesions, the animals did not show clinical signs associated with the parasitic infections. characteristics of the larvae incl ... | 2008 | 18702454 |