Jones B.R., Hodge H. and Davies E.
The cause of hyperthyroidism in cats remains elusive. Clear risk factors for hyperthyroidism other than age have not been identified. The results of this study suggest that the involvement of FIV in the pathogenesis of hyperthyroidism in cats is unlikely. Evidence of an immunemediated disorder is minimal. Dietary iodine excess has been investigated as a cause on a relatively short-term basis, but long-term (Years) studies of goitrogens may be necessary to elucidate the cause. In vitro studies of cells isolated from adenomatous thyroid glands may provide some insight into the initial cause for this important disease.