Peer-reviewed veterinary case report
Nasal mass causing discharge in 6-month-old Weimaraner dog
By Leroith, Tanya et al.·Published in Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·2009·Department of Biomedical Sciences and Pathobiology, United States·View original on PubMed →
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Original publication title: Respiratory epithelial adenomatoid hamartoma in a dog.
- Species:
- dog
Plain-English summary
A 6-month-old male Weimaraner was brought to the vet with a runny nose and eyes that had started around 10 weeks old. A CT scan revealed a large mass in his nasal cavity and sinuses, which caused significant damage to the surrounding bone. Unfortunately, the dog had complications during a procedure to take a sample of the mass and was euthanized. A post-mortem examination found that the mass was a type of growth called a respiratory epithelial adenomatoid hamartoma, which is a benign tumor made up of abnormal tissue.
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Abstract
A 6-month-old, intact, male Weimaraner dog presented to the veterinary teaching hospital for bilateral mucopurulent ocular and nasal discharge that began at approximately 10 weeks of age. A computed tomography scan showed an expansile soft-tissue mass involving both frontal sinuses, the ethmoid regions, and nasal cavities with lysis of the maxillary turbinates and hyperostosis of the walls of the frontal sinus. The dog was euthanized after complications during a trephination and biopsy procedure. At necropsy, a large, tan, papillary, gelatinous mass filled the entire nasal cavity and frontal sinus. The mass was composed of large fronds of loose fibrovascular stroma covered by a single layer of pseudostratified, columnar, ciliated epithelium and intermixed goblet cells. The cells occasionally formed glandular structures that were continuous with the surface epithelium. The mass was diagnosed as a respiratory epithelial adenomatoid hamartoma based on the morphologic appearance.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/19901304/