A thyroid scan can be used to assess unusual lumps in the thyroid or to measure how well the thyroid is working.

it is used to evaluate:
  • causes for thyrotoxicosis (overactivity)
  • thyroid nodules
  • suspected ectopic thyroid tissue
  • the activity and/or location of the thyroid gland in neonatal hypothyroidism

The British Nuclear Medicine Society has prepared a patient information leaflet about this

Read the patient leaflet