What Protein Is Stored In The Thyroid Follicle? Thyroglobulin is stored extracellularly in the lumen of the thyroid follicle, where it is virtually the sole occupant (Fig. 1). When the stored hormone is needed, Tg is retrieved by pinocytosis and ingested by the cell, where it fuses with lysosomes and is digested, and the hormone
Is A Fine Needle Biopsy Of The Thyroid Painful? The biopsy causes very little pain. But your doctor may need to put the needle into your thyroid more than once. This is done to be sure enough fluid and tissue is taken for the test. The doctor then looks at the tissue sample under a
Is The Radioactive Iodine Uptake Test Safe? A radioactive iodine uptake (RAIU) test uses a radioactive tracer and a special probe to measure how much tracer the thyroid gland absorbs from the blood. The test can show how much tracer is absorbed by the thyroid gland. Is a thyroid uptake scan safe? There’s a small