Peer-reviewed veterinary case report
Cat develops fibrosarcoma tumor linked to microchip on neck
By Carminato, Antonio et al.·Published in Veterinary dermatology·2011·Department of Histopathology, Italy·View original on PubMed →
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Original publication title: Microchip-associated fibrosarcoma in a cat.
- Species:
- cat
Plain-English summary
A 9-year-old neutered male cat was brought in because of a lump on his neck. After the vet removed the mass, they discovered that it contained a microchip and was diagnosed with a type of tumor called fibrosarcoma, which can sometimes develop at injection sites. Interestingly, this cat had never received vaccinations at that location, as all his shots were given in his hind legs. This case highlights the rare possibility of tumors forming around microchips, and following vaccination guidelines can help reduce such risks. The cat is recovering well after the surgery.
People also search for: cat lump on neck · microchip tumor in cats · fibrosarcoma in cats · cat surgery recovery · cat vaccination guidelines
Abstract
A 9-year-old, neutered male cat was presented for a subcutaneous mass on the neck. After surgical removal of the mass, a pet identification microchip was found within the tumour. Histological examination of the mass revealed typical features of the feline postinjection sarcoma. The cat had never received injections at the tumour site; all routine vaccinations were administered in the hindlimbs. Few cases of sarcomas developing at the site of microchip application have been reported in animals, although the contributory role of vaccine administrations has not been ruled out. This is the first report of a microchip-associated fibrosarcoma in a cat. Adherence to American Association of Feline Practitioners vaccination guidelines, avoiding the interscapular area, enabled confirmation of the definitive aetiology of the neoplasia.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/21535253/