"Tc-99m pertechnetate thyroid scintigraphy (thyroid scan) is a functional nuclear medicine study used to assess the thyroid gland. The uptake of the pertechnetate anion - similar in chemical-physical characteristics to the iodide ion (i. e. ionic size and negative charge) - in the thyroid parenchyma is mediated by the NIS (sodium-iodide symporter, a transmembrane glycoprotein). However, unlike iodine, pertechnetate anion is not incorporated into thyroid hormones."
"obtain anterior, LAO, and RAO views"
"Hashitoxicosis"
Expected headings
"Increased uptake"
"Normal uptake"
"Decreased uptake"
"Abnormal site of uptake"