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Peer-reviewed veterinary case report

Anal sac gland cancer causing painful swelling in a 15-year-old cat

By Parry, N M A·Published in Veterinary pathology·2006·Department of Biomedical Sciences, United States·View original on PubMed

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Original publication title: Anal sac gland carcinoma in a cat.

Species:
cat

Plain-English summary

A 15-year-old domestic shorthair cat was brought to the vet with a painful mass near its rear end. The vet performed surgery to remove the mass, which was found to be anal sac gland carcinoma, a type of cancer that affects the glands near the anus. This condition can be serious as it invades surrounding tissues. The cat's prognosis and further treatment options would depend on the extent of the cancer and the vet's recommendations following surgery.

People also search for: cat anal sac cancer symptoms · cat surgery for anal mass · what to expect after cat cancer surgery

Abstract

A perianal mass in a 15-year-old domestic shorthair cat with a history of a firm, painful swelling in the left ventrolateral perianal region was surgically excised and submitted for light microscopic evaluation. Histologically, this was a poorly demarcated, unencapsulated, multilobulated neoplasm that invaded surrounding perirectal skeletal muscle bundles. Lobules were composed of sheets and acinar arrangements of cuboidal to round neoplastic epithelial cells with scant to moderate eosinophilic to amphophilic cytoplasm and a round or oval nucleus with coarse chromatin. Mitotic figures were 2 per 40 x objective field. Acinar lumina sometimes contained eosinophilic proteinaceous material or cell debris. These microscopic features are consistent with anal sac gland carcinoma. This is the second report of this neoplasm in a cat.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17099161/