Why is a thyroid scan necessary ?
Thyroid scintigraphy provides valuable information regarding both anatomy and physiology of hyperfunctional thyroid tissue and plays an integral role in the diagnosis and management of cats with hyperthyroidism. The thyroid scan serves as a screening procedure to discriminate between benign and malignant thyroid conditions. It also detects local extension and distant metastasis of thyroid malignancy or the presence of ectopic thyroid tissue in the thoracic cavity. It will also confirm the diagnosis in patients that have equivocal lab tests.