Two Cases of Canine Pyloric Tumor

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  • SUZUKI Kaoru
    Faculty of Agriculture, Tokyo University of Agriculture and Technology
  • KONNO Katsuhiko
    Faculty of Agriculture, Tokyo University of Agriculture and Technology
  • MARUO Kohji
    Faculty of Agriculture, Tokyo University of Agriculture and Technology
  • HAYASAKI Mineo
    Faculty of Agriculture, Tokyo University of Agriculture and Technology

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Other Title
  • 犬の胃幽門部腫瘍2例
  • イヌ ノ イ ユウモンブ シュヨウ 2レイ

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Abstract

An 8-year-old female Yorkshire terrier(Case 1)and a 14-year-old female Shetland sheepdog(Case 2)were admitted to the authors' Veterinary Clinic because of persistent vomiting after food intake. Both animals became weak after being treated conservatively without response. In both cases, pyloric stenosis was suspected by contrast radiography, and exploratory laparotomy was performed. In Case 1, the pyloric lumen was narrowed with cauliflower-like tissue. In Case 2, a globe-shaped swelling was observed on the serosa side. It was felt that these abnormal structures were tumors and the cause of the pyloric stenosis. From histopathological examination of the biopsytissue, the lesions of Cases 1 and 2 were diagnosed as adenocarcinoma and lymphosarcoma, respectively. Canine gastric tumors are rare and the noticeable symptoms are not characteristic. Thus, it is difficult to detect these conditions at an early stage. However, it suggests that cases of chronic voimting in older dogs should be carefully investigated for gastric tumors.

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