Peer-reviewed veterinary case report
Dog with intestinal tissue mass under the skin on right flank
By Whitten, K A et al.·Published in Veterinary pathology·2006·Department of Veterinary Pathology, United States·View original on PubMed →
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Original publication title: Intestinal choristoma in the subcutis of a dog.
- Species:
- dog
Plain-English summary
A 2-year-old spayed female Labrador Retriever-cross had a lump on her right side that had been there for several weeks. The vet performed surgery to remove the mass and found it was a unique growth made up of intestinal tissue, which is called an intestinal choristoma. This type of growth is rare and consists of both muscle and intestinal-like cells. After the surgery, the dog was likely monitored for recovery, but the specific outcome wasn't detailed.
People also search for: dog lump on side · Labrador Retriever skin mass · intestinal choristoma in dogs · dog surgery recovery
Abstract
A 2-year-old, spayed female, Labrador Retriever-cross presented with a subcutaneous mass of several weeks' duration in the right flank region. Surgical excision and histologic examination were performed. The 1.0-cm-diameter mass was circumscribed, unencapsulated, and cystic with a bilayer wall. The inner layer resembled intestinal mucosa, including a tall columnar lining epithelium, crypt-like glands containing scattered neuroendocrine cells that were strongly immunopositive for synaptophysin, and a supporting lamina propria-like fibrovascular tissue that contained lymphocytes and plasma cells. The outer layer was 1- to 2-mm thick and was composed of intersecting and blending bundles of smooth muscle and collagen. Given the presence of organized intestinal tissues in the subcutis, the lesion was consistent with intestinal choristoma.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16672583/