Peer-reviewed veterinary case report
Dog develops firm neck mass from microchip 8 years after implant
By Legallet, Claire et al.·Published in Journal of the American Animal Hospital Association·2017·From Texas A&M University, United States·View original on PubMed →
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Original publication title: Granulomatous Inflammatory Response to a Microchip Implanted in a Dog for Eight Years.
- Species:
- dog
Plain-English summary
An 8-year-old neutered male springer spaniel was brought to the vet with a large, firm mass on his neck. The dog had a microchip implanted about eight years earlier, and tests confirmed that the microchip was inside the mass. The vet surgically removed the microchip and the surrounding tissue, which showed signs of inflammation due to the cracked microchip. After the surgery, the dog was healthy again, showing that the mass was successfully treated.
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Abstract
An 8 yr old neutered male springer spaniel dog was referred to Texas A&M University, College of Veterinary Medicine for a large, firm, fixed mass, located in the dorsal cervical tissue. The dog was otherwise healthy and had undergone microchip implantation approximately 8 yr prior. Radiographs, ultrasound, and microchip scanner confirmed the presence of a microchip within the mass. The microchip and associated mass were surgically excised, and histopathologic examination revealed granulomatous inflammation surrounding a cracked microchip. This case represents the first report of a granulomatous inflammatory response to a microchip 8 yr after implantation in a dog and highlights an important differential diagnosis.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28535132/