論文

査読有り 国際誌
2020年6月16日

Ultrasonography of sudden swollen tongue in a calf.

BMC veterinary research
  • Takeshi Tsuka
  • ,
  • Yoshiharu Okamoto
  • ,
  • Yuji Sunden
  • ,
  • Takehito Morita
  • ,
  • Masamichi Yamashita
  • ,
  • Tomohiro Osaki
  • ,
  • Kazuo Azuma
  • ,
  • Takao Amaha
  • ,
  • Norihiko Ito
  • ,
  • Yusuke Murahata
  • ,
  • Tomohiro Imagawa

16
1
開始ページ
200
終了ページ
200
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1186/s12917-020-02398-0

BACKGROUND: In cattle, the lingual diseases are primarily diagnosed postmortem by histopathological examination of the affected tongues obtained after the death or during necropsy. In humans, ultrasonography has been used to provide differential diagnoses, and for preoperative or intraoperative planning of glossectomy in various lingual diseases. This is a bovine clinical case report, in which ultrasonography for sudden swelling of the tongue, which was possibly caused by snake bite, was utilized as a preoperative indication to perform a glossectomy. CASE PRESENTATION: An eight-month-old female Japanese black calf presented with sudden swelling of the tongue with well-defined discoloration in the cranial region. A 10-MHz linear probe on a portable-type ultrasound machine (MyLabOne VET, Esaote Co., Genova, Italy) was applied to the ventral surface of the tongues in the affected case, and also in five healthy calves under sedation to observe normal tongues. Ultrasonography of the swollen tongue in this case revealed that the ventral lingual muscular layers were severely thickened compared with those of normal tongues. However, the muscle layers were regularly aligned with the echogenic muscular fibers. This resembled the lingual muscular architectures of normal tongues. Color-flow Doppler ultrasonography revealed that blood flow was weakened in the small peripheral vessels in the spaces between the lingual muscular structures, and was lacking in the deep lingual artery between the apex and base of the tongue. This finding was very different than that of normal tongues, which exhibited weakened or rich blood flows. Based on ultrasonographic findings, this case was treated with glossectomy. After recovery, the calf grew up normally with a normal appetite and rumination, and did not exhibit mouth pain behavior. Histopathologically, hemorrhagic necrotic changes, together with focal formation of fibrin thrombus in the lingual blood vessels in the affected tongue, were noted. CONCLUSIONS: To the best of our knowledge, the present report is the first description of lingual ultrasonography performed in cattle. In this case, ultrasonography enabled visualization of decreased vascularity, which might be associated with hemorrhage or formation of fibrin thrombus in the suddenly swollen tongue presented.

リンク情報
DOI
https://doi.org/10.1186/s12917-020-02398-0
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32546145
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7298850
ID情報
  • DOI : 10.1186/s12917-020-02398-0
  • PubMed ID : 32546145
  • PubMed Central 記事ID : PMC7298850

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