Spontaneous meningioma in a pig-tailed macaque (<i>Macaca nemestrina</i>)
We present a case of spontaneous meningioma in a female pig-tailed macaque (<i>Macaca nemestrina</i>) more than 24 years old. Clinically, the monkey displayed slow, weak, and insecure movements and poor vision. A tumorous mass was present at the floor of the cranial vault extending f...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-04-01
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| Series: | Primate Biology |
| Online Access: | https://www.primate-biol.net/5/7/2018/pb-5-7-2018.pdf |
| Summary: | We present a case of spontaneous
meningioma in a female pig-tailed macaque (<i>Macaca nemestrina</i>) more
than 24 years old. Clinically, the monkey displayed slow, weak, and insecure
movements and poor vision. A tumorous mass was present at the floor of the
cranial vault extending from the optic chiasm towards the foramen magnum. It
compressed adjacent parts of the brain, infiltrated the sphenoidal and
occipital bone, and showed transcranial expansion into the pharyngeal area.
Histologically, the tumor was consistent with a meningioma displaying mostly
meningothelial and some microcystic components. Since only six cases of
meningiomas in nonhuman primates have been reported so far and only two of
these meningiomas have been described in detail, the findings of each case
should be reported to expand the knowledge base of this type of tumor. In
addition, this is the first description of a meningioma in pig-tailed
macaques. |
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| ISSN: | 2363-4707 2363-4715 |