thyroid scanning

thyroid scanning

a radionuclear scan that determines the size, shape, position, and physiological function of the thyroid gland. It is useful in patients with neck or substernal masses, thyroid nodules, hyperthyroidism, metastatic tumors without a known primary site, and well-differentiated forms of thyroid cancer. The scan may focus either on the neck area only, or on the whole body (done in patients previously treated for thyroid cancer).

thyroid scanning

A method of assessing the rate of uptake of iodine by, and the pattern of distribution in, the thyroid gland using a compound containing radioactive iodine and a GAMMA CAMERA.
References in periodicals archive ?
Thyroid scanning is an additional diagnostic tool that evaluates for thyroid gland dysgenesis in newborns identified with congenital hypothyroidism by newborn screening programs.
10) Nevertheless, thyroid scanning is still useful particularly in selected patients, including particularly those with hypothyroidism, and those with thyrotropin abnormalities.
2) In a recent textbook on thyroid cancer, (28) published in 2000, Wartofsky wrote: "Fluorescent thyroid scanning offers special advantages in childhood and pregnancy due to minimal radiation exposure.
If the gland is asymmetric or hard, further evaluation with thyroid scanning and tissue sampling is needed.
19) Okerlund commented, "The types of images obtained from fluorescent thyroid scanning are indistinguishable from those of isotope scanning, since the same electronics and data presentation systems are used.
Andros G, Harper PV, Lathrop KA, et al: Pertechnetate-99m localization in man with applications to thyroid scanning and the study of thyroid physiology.
Aspiration cytology, ultrasonography, thyroid scanning with radioactive iodine and/or other radionuclides, and suppression therapy with L-thyroxine will be used.

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