Peer-reviewed veterinary case report
Cutaneous lymphoid hyperplasia mimicking cutaneous lymphoma in a hyperthyroid cat.
- Journal:
- The Canadian veterinary journal = La revue veterinaire canadienne
- Year:
- 2013
- Authors:
- Snead, Elisabeth et al.
- Affiliation:
- Department of Small Animal Clinical Sciences (Snead · Canada
- Species:
- cat
Plain-English summary
A 12-year-old neutered male domestic shorthair cat came to the vet because he had a long-lasting swelling and crusty area on his left upper lip, was losing weight, occasionally vomited, and had some hair loss between his shoulder blades. He was found to have hyperthyroidism (an overactive thyroid) and inflammation in his lymph nodes. When he was treated with methimazole, a medication for hyperthyroidism, it made an existing allergy problem worse, causing swollen lymph nodes that looked like lymphoma (a type of cancer) under the microscope. The treatment did not work as intended and led to complications.
Abstract
A 12-year-old neutered male domestic shorthair cat presented for chronic, localized, swelling and crusting of the left upper lip, weight loss, sporadic vomiting, and focal alopecia between the scapulae was diagnosed with hyperthyroidism and regional eosinophilic lymphadenitis. Treatment with methimazole exacerbated an underlying hypersensitivity disorder leading to marked generalized lymphadenopathy that histologically mimicked lymphoma.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/24155419/