Abstract
Here, we report a case of rhinocerebral zygomycosis due to a Lichtheimia ramosa infection in a calf. A histopathological examination revealed that a fungus had invaded the brain through the olfactory nerves. Lichtheimia ramosa was detected by polymerase chain reaction analysis of DNA extracted from formalin-fixed paraffin-embedded samples of the affected tissue. This is the first case of rhinocerebral zygomycosis to involve cattle. Also, this is the first such case to involve fungal invasion into the central nervous system through the cranial nerve itself, rather than through perineural tissue.
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We thank Mrs. Tomikawa for her technical assistance.
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This study did not contain any experiments involving human subjects. In addition, no animal experiments were performed in this study. The animal described in the present article was submitted as a necropsy sample after its death, and all of the procedures applied to the animal were approved by the Committee on the Ethics of Animal Experiments of Obihiro University of Agriculture and Veterinary Medicine (Permit Number: 29-153). All applicable international, national, and institutional guidelines for the care of animals were followed.
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Tanaka, Y., Toyotome, T., Inokuma, H. et al. Rhinocerebral Zygomycosis Due to a Lichtheimia ramosa Infection in a Calf: Neural Spread Through the Olfactory Nerves. Mycopathologia 184, 141–146 (2019). https://doi.org/10.1007/s11046-018-0296-z
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DOI: https://doi.org/10.1007/s11046-018-0296-z