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Volume 60 Number 4 >

The role of endoscopic ultrasound in the evaluation of rectal polypoid lesions in 25 dogs

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Title: The role of endoscopic ultrasound in the evaluation of rectal polypoid lesions in 25 dogs
Authors: Hayashi, Kohtaro Browse this author
Okanishi, Hiroki Browse this author
Kagawa, Yumiko Browse this author
Asano, Kazushi Browse this author
Watari, Toshihiro Browse this author
Keywords: dog
endoscopic ultrasound
rectal polypoid lesions
Issue Date: Nov-2012
Publisher: Graduate School of Veterinary Medicine, Hokkaido University
Journal Title: Japanese Journal of Veterinary Research
Volume: 60
Issue: 4
Start Page: 185
End Page: 189
Abstract: We investigated the role of endoscopic ultrasound in the evaluation of rectal polypoid lesions in 25 dogs. Twenty-five cases of rectal polypoid lesions in dogs who underwent surgery after endoscopic and EUS assessment were studied. The invasion depth of the polypoid lesion was classified as M stage (lesions in the mucosa only), SM stage (lesions in the mucosa and submucosa), and MP stage (lesions extending to the muscularis propria). Transabdominal ultrasound was performed in nine cases, but not all were evaluated in detail. EUS provided detailed images for all cases and showed a significant correlation with surgical pathology in the T stage (accuracy, 92%; κ = 0.77). As per classification by invasion depth, inflammatory polyps were only M polypoid lesions, whereas SM and MP polypoid lesions were only adenocarcinomas (P < 0.05). The average survival time according to specific condition was as follows: 1,235 days for inflammatory polyps, and 804 days for M adenocarcinoma. The survival time of two SM adenocarcinoma cases was 756 and 2,114 days, respectively, and the survival time of two MP adenocarcinoma cases was 16 and 42 days, respectively. EUS were useful for the evaluation of rectal polypoid lesions in dogs, whereas transabdominal ultrasound was not. Determination of the invasion depth of polypoid lesions using EUS may be useful for the evaluation of malignancy and prognosis.
Type: bulletin (article)
Appears in Collections:Japanese Journal of Veterinary Research > Volume 60 Number 4

Submitter: 獣医学部図書室

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