Miyabe-Nishiwaki Takako, Kaneko Takaaki, Sakai Tomoko, Kaneko Akihisa, Watanabe Akino, Watanabe Shohei, Maeda Norihiko, Kumazaki Kiyonori, Suzuki Juri, Fujiwara Reina, Makishima Haruyuki, Nishimura Takeshi, Hayashi Misato, Tomonaga Masaki, Matsuzawa Tetsuro, Mikami Akichika
Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama, Aichi, 484-8506, Japan.
Primates. 2014 Jan;55(1):7-12. doi: 10.1007/s10329-013-0384-0. Epub 2013 Sep 26.
An intracranial arachnoid cyst was detected in a 32-year-old, 44.6-kg, female chimpanzee at the Primate Research Institute, Kyoto University. Magnetic resonance imaging (MRI) and computed tomography (CT) were performed and the cognitive studies in which she participated were reviewed. MRI revealed that the cyst was present in the chimpanzee's right occipital convexity, and was located in close proximity to the posterior horn of the right lateral ventricle without ventriculomegaly. CT confirmed the presence of the cyst and no apparent signs indicating previous skull fractures were found. The thickness of the mandible was asymmetrical, whereas the temporomandibular joints and dentition were symmetrical. She showed no abnormalities in various cognitive studies since she was 3 years old, except a different behavioural pattern during a recent study, indicating a possible visual field defect. Detailed cognitive studies, long-term observation of her physical condition and follow-up MRI will be continued.
在京都大学灵长类动物研究所的一只32岁、体重44.6千克的雌性黑猩猩体内检测到一个颅内蛛网膜囊肿。进行了磁共振成像（MRI）和计算机断层扫描（CT），并回顾了它参与的认知研究。MRI显示囊肿位于黑猩猩右侧枕叶凸面，紧邻右侧侧脑室后角，且无脑室扩大。CT证实了囊肿的存在，未发现表明既往颅骨骨折的明显迹象。下颌骨厚度不对称，而颞下颌关节和牙列对称。自3岁起，它在各项认知研究中均未表现出异常，只是在最近一项研究中行为模式有所不同，提示可能存在视野缺损。将继续进行详细的认知研究、对其身体状况的长期观察以及后续的MRI检查。
