JAAHA, 1983. 19: p.369-372.
Hyperthyroidism is the clinical syndrome that results from hypersecretion of the thyroid hormones, thyroxine (T4 ) and/or triiodothyronine (T3). The wide variety of biochemical abnormalities seen in cats with this disease demonstrates the multisystemic nature of this clinical state in which cardiac, hepatic, gastrointestinal and renal manifestations are commonly seen. The excessive production of thyroid hormone has been associated with functional thyroid lesions such as adenocarcinomas, adenomas or multinodular adenomatous goiter.