Aberrant Origin of Single Coronary Artery from Pulmonary Trunk in a Calf

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  • 1例の子ウシに認められた単一冠状動脈肺動脈起始
  • 1レイ ノ コウシ ニ ミトメラレタ タンイツ カンジョウ ドウミャク ハイ ドウミャク キシ

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The single coronary artery was detected in 299 cases among 7,620 cattle necropsied at Miyazaki University. One case of them showed aberrant origin from the pulmonary artery. This calf died 16 hours after birth. On the necropsy, the blepharophimosis, wry tail, mild dilatation of the lateral ventricles, mild pulmonary hemorrhage, and cryptorchism were found. The single coronary artery originated from antero-left lateral surface of the pulmonary trunk. The artery sent a conus and paraconal interventricular branches and bifurcated to a left circumflex branch and right coronary artery.

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