To isolate radioiodine, the irradiated capsule is first cooled ( to collect free iodine gas on the capsule sides ) and the remaining Xe gas is allowed to escape.
42.
Depending on the nature of the disease, the treatment may consist of thyrostatics ( drugs that reduce production of thyroid hormone ), radioiodine, or occasionally thyroid surgery.
43.
Due to preferential uptake of iodine by the thyroid, radioiodine is extensively used in imaging of and, in the case of I-131, destroying dysfunctional thyroid tissues.
44.
Lenvatinib was granted orphan drug status for treatment of various types of thyroid cancer that do not respond to radioiodine in the US and Japan in 2012 and in Europe in 2013.
45.
The uptake test involves administering a dose of radioactive iodine ( radioiodine ), traditionally iodine-131 ( 131 I ), and more recently iodine-123 ( 123 I ).
46.
Radioiodine ablation has been used for over 50 years, and the only major reasons for not using it are pregnancy and breastfeeding ( breast tissue also picks up and concentrates iodine ).
47.
There is extensive experience, over many years, of the use of radioiodine in the treatment of thyroid overactivity and this experience does not indicate any increased risk of thyroid cancer following treatment.
48.
Use of higher doses of radioiodine reduces the incidence of treatment failure, with penalty for higher response to treatment consisting mostly of higher rates of eventual hypothyroidism which requires hormone treatment for life.
49.
If a significant amount of residual tumor is left in the neck, external radiotherapy has been indicated and has proven useful especially in those cases when the residual tumor does not take up radioiodine.
50.
Treatment involves the important iodine isotope iodine-131 ( 131 I ), often simply called " radioiodine " ( though technically all radioisotopes of iodine are radioiodines; see isotopes of iodine ).
