Toxic multinodular goitre
Diagnosis

Hyperthyroidism is diagnosed by evaluating symptoms and physical exam findings, and by conducting laboratory tests to confirm the presence of excess thyroid hormones. It is characterized by high levels of thyroid hormone in the blood along with a low level of thyroid-stimulating hormone (TSH). After diagnosing hyperthyroidism, a thyroid scan can be performed to determine the functionality of the thyroid gland using radioactive iodine. This scan can identify toxic nodules, which appear as a single area of overactivity, as well as toxic multinodular goiter, which presents with multiple areas of overactivity. In addition, a thyroid ultrasound can be conducted to better evaluate the presence of thyroid nodules.
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