Peer-reviewed veterinary case report
Scintigraphy shows thyroid problems in 120 hyperthyroid cats
By Harvey, Andrea M et al.·Published in Journal of feline medicine and surgery·2009·Department of Clinical Veterinary Science, United Kingdom·View original on PubMed →
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Original publication title: Scintigraphic findings in 120 hyperthyroid cats.
- Species:
- cat
Plain-English summary
A group of hyperthyroid cats underwent a special imaging test to find out where their thyroid problems were located. The results showed that nearly 20% of these cats had multiple areas of overactive thyroid tissue, some of which were located in the chest, making surgery less effective. The good news is that these cats responded well to treatment with low-dose radioiodine, which helped manage their condition. It's important for pet owners to know that some cats may have thyroid tissue in unusual places before considering surgery.
People also search for: hyperthyroid cat treatment · cat thyroid surgery risks · low-dose radioiodine for cats
Abstract
The aim of this study was to characterise the scintigraphic findings in a large population of hyperthyroid cats in order to determine the location of thyroid pathology in newly diagnosed hyperthyroid cats and those that had previously undergone thyroidectomy. A specific aim was to identify the proportion of cats with ectopic hyperfunctional thyroid tissue and characterise the scintigraphic and clinical features of this subset of cats. Nearly one in five hyperthyroid cats was identified to have multiple areas of hyperfunctional thyroid tissue and/or intrathoracic hyperfunctional thyroid tissue where surgical thyroidectomy would not be curative. In addition, this study demonstrated that scintigraphy cannot reliably distinguish between thyroid carcinoma and adenoma. Owners should always be warned about the possibility of ectopic thyroid tissue before thyroidectomy is performed. In this study, intrathoracic hyperfunctional thyroid tissue and multiple areas of increased radionuclide uptake (IRU) were a common feature of benign thyroid disease and responded well to treatment with low dose radioiodine.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/18783974/