Peer-reviewed veterinary case report
Blood in stool from colon tumors in dogs - 34 cases
By Valerius, K D et al.·Published in Journal of the American Animal Hospital Association·1997·Department of Clinical Sciences, United States·View original on PubMed →
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Original publication title: Adenomatous polyps and carcinoma in situ of the canine colon and rectum: 34 cases (1982-1994).
- Species:
- dog
Plain-English summary
A group of 34 dogs, mostly around eight years old, were brought in for bleeding from the rectum, a symptom known as hematochezia. Upon examination, most had solitary masses in the rectum, which were found to be either adenomatous polyps or carcinoma in situ (a type of early cancer). Unfortunately, many of these dogs experienced a return of symptoms, and some even had their tumors turn malignant. The study highlighted that dogs with multiple masses or those diagnosed with carcinoma in situ were at a higher risk for these issues.
People also search for: dog rectal bleeding causes · adenomatous polyps in dogs · dog cancer treatment options
Abstract
The medical records of 34 dogs (median age, eight years) with colorectal mucosal lesions were reviewed. Hematochezia was the most common (82%) presenting sign. Most dogs (79%) presented with solitary masses located in the rectum. After histological review, 12 masses were classified as adenomatous polyps and 22 as carcinoma in situ. Recurrence of clinical signs were common (41%), and malignant transformation of the tumor was documented in 18% of the cases. A higher recurrence rate and malignant transformation occurred in dogs presented with multiple masses or diffuse disease and in dogs initially diagnosed with carcinoma in situ.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/9111726/