Tsuka Takeshi, Saito Ai, Okamoto Yoshiharu, Sunden Yuji, Morita Takehito, Nishimura Ryo, Murahata Yusuke, Azuma Kazuo, Yamashita Masamichi, Osaki Tomohiro, Ito Norihiko, Imagawa Tomohiro
Clinical Veterinary Sciences, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101, Koyama-Minami, Tottori, Japan.
Okayama Prefectural Federation Agricultural Mutual Aid Association, 1-30, Kuwata, Okayama-city, Okayama, Japan.
Ir Vet J. 2020 Aug 27;73:19. doi: 10.1186/s13620-020-00173-z. eCollection 2020.
Nasal abnormalities are rare in bovines. In humans, nasal deformities are mainly classified as proboscis lateralis or supernumerary nostrils. This report discusses the etiology of triple nostrils in a calf, based on computed tomography, magnetic resonance imaging, and endoscopy.
A female Holstein calf presented with triple nostrils. The following abnormalities were observed: (1) formation of a small and flat blind-ended middle nostril between the right and left nostrils; (2) presence of a hair-bearing surface on the muzzle; (3) abnormal curvature of the nasal septum, resulting in a narrower right nasal cavity due to transformation of the nasal bones; and (4) formation of a bone-like structure within the nasal septum. These findings were similar to those of supernumerary nostrils in humans.
To the best of our knowledge, this represents the first description of a calf with triple nostrils. The use of imaging modalities is necessary for investigating the etiology of triple nostrils.
牛的鼻腔异常很少见。在人类中，鼻畸形主要分为侧鼻吻或多余鼻孔。本报告基于计算机断层扫描、磁共振成像和内窥镜检查，探讨了一头小牛出现三鼻孔的病因。
一头雌性荷斯坦小牛出现三鼻孔。观察到以下异常情况：（1）在左右鼻孔之间形成一个小而扁平的盲端中间鼻孔；（2）口鼻部有带毛表面；（3）鼻中隔异常弯曲，由于鼻骨变形导致右侧鼻腔变窄；（4）鼻中隔内形成类似骨头的结构。这些发现与人类多余鼻孔的情况相似。
据我们所知，这是对一头有三鼻孔小牛的首次描述。使用成像方式对于调查三鼻孔的病因是必要的。
