Anatomical variation of arterial supply to the rabbit stomach

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  • IKEGAMI Reona
    Laboratory of Veterinary Anatomy, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183–8509, Japan
  • TANIMOTO Yoshimasa
    Laboratory of Veterinary Anatomy, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183–8509, Japan
  • KISHIMOTO Miori
    Laboratory of Veterinary Imaging, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183–8509, Japan
  • SHIBATA Hideshi
    Laboratory of Veterinary Anatomy, Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183–8509, Japan

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Gastric stasis is common in rabbits, and gastrotomy may be performed to cure this pathological condition. Detailed descriptions of the arterial supply to the stomach are essential for this surgical operation, but published descriptions are limited. Here, we investigated anatomical variations of the arterial supply to the stomach in 43 New Zealand White rabbits by injecting colored latex into arteries. We observed that the left gastric artery that arose as the second branch from the celiac artery provided 1–3 parietal and 1–3 visceral branches to the stomach, with various branching patterns depending on the case. In 34 of 43 cases, the left gastric artery ended upon entering the gastric wall at the lesser curvature, whereas in the remaining cases, the artery continued as the hepatic artery without entering the gastric wall. The right gastric artery that branched off from the gastroduodenal artery also supplied the lesser curvature sinistrally but did not anastomose with the left gastric artery. In 40 cases, the hepatic artery provided 1–4 pyloric branches. In the fundic region, the short gastric arteries arose from the splenic artery and varied in number from 2 to 6. The right and left gastroepiploic arteries anastomosed to give 2–7 branches to the greater curvature. The results showed that many variations occurred in the arteries supplying the rabbit stomach, suggesting that such variations should be considered when performing veterinary surgical treatments in rabbits.

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