Peer-reviewed veterinary case report
Endoscopic ultrasound helps assess rectal polyps in 25 dogs
By Hayashi, Kohtaro et al.·Published in The Japanese journal of veterinary research·2012·College of Bioresource Sciences, Japan·View original on PubMed →
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Original publication title: The role of endoscopic ultrasound in the evaluation of rectal polypoid lesions in 25 dogs.
- Species:
- dog
Plain-English summary
A group of 25 dogs with rectal polypoid lesions underwent endoscopic ultrasound (EUS) to assess the severity of their condition before surgery. The EUS provided clear images that helped determine how deeply the lesions invaded the rectal tissue, which is important for understanding whether they were benign inflammatory polyps or malignant adenocarcinomas (a type of cancer). Dogs with inflammatory polyps had a longer average survival time of about 1,235 days, while those with adenocarcinomas had varying survival times depending on the depth of invasion. EUS proved to be a valuable tool for evaluating these lesions and guiding treatment decisions.
People also search for: dog rectal polyp treatment · endoscopic ultrasound for dogs · dog rectal cancer survival rate
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%; K = 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.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23304979/