A Thyroid Scan is a diagnostic imaging test used to evaluate the structure and function of the thyroid gland. It typically involves the use of a radioactive iodine or technetium tracer to produce images of the thyroid. This scan helps in diagnosing conditions like hyperthyroidism, thyroid nodules, and thyroid cancer.
Indications for Thyroid Scan:
● Hyperthyroidism: To assess the function and identify the cause of overactive thyroid.
● Thyroid nodules: To determine whether a nodule is functioning or non-functioning.
● Thyroid cancer: To evaluate the spread of thyroid cancer or metastases to lymph nodes.
● Goiter: To investigate an enlarged thyroid and detect functional abnormalities.
How Thyroid Scan Works:
● A small dose of radioactive iodine or technetium is administered orally or intravenously. The tracer is absorbed by the thyroid, and a special camera captures images of how the thyroid is functioning.
Normal Range:
● A normal thyroid scan shows uniform uptake of the tracer across the thyroid gland without any irregular or abnormal areas.
Abnormal Test Significance:
● Increased uptake: May indicate hyperthyroidism or Graves’ disease.
● Decreased uptake: May suggest hypothyroidism or thyroid cancer.
● Hot nodules: Typically benign and functioning properly.
● Cold nodules: May require further testing, as they could be malignant.
Management Based on Results:
● For hyperthyroidism: Treatment includes antithyroid medications, radioactive iodine therapy, or surgery.
● For thyroid cancer: Further tests like biopsy and surgical removal may be required.
Price in India:
Approx. ₹3,000 – ₹7,000 for a thyroid scan.
Frequently Asked Questions
Is a thyroid scan safe?
Yes, the amount of radiation used is minimal and considered safe for most individuals.
How long does the thyroid scan take?
The procedure typically takes 30 minutes to 1 hour, depending on the type of scan.
Disclaimer: A thyroid scan is a functional imaging test used to assess thyroid activity, and abnormal results may require further diagnostic tests for confirmation.
How HealthPil Can Help:
At HealthPil, we provide consultations with endocrinologists and nuclear medicine specialists who can interpret your thyroid scan results and recommend the appropriate treatment plan.