background endemic goiter is present in most parts of iran. iron deficiency adversely affects the physiology of thyroid. the initial steps of thyroid hormone synthesis are catalyzed by thyroperoxidases and are dependent on iron. in many developing countries, children are at high risk of both goiter and iron deficiency anemia. in addition, iron deficiency may alter central nervous system control...

Iodine-123 single photon emission computed tomography (SPECT) imaging of the thyroid was performed in two patients with multinodular goiter and swallowing difficulty to provide the functional and anatomic orientation of the goiter in relation to the airway. Transaxial slices showed the retrolaryngeal extension of the enlarged thyroid and the tracheal compression by the goiter in both patients. ...

The aim of the present study was to estimate the prevalence of goiter in schoolchildren in a formerly iodine-deficient region in southern Brazil by assessing the relationship between body surface area (m2 ) and thyroid volume (ml) measured by ultrasonography. A population-based sample of 1,094 randomly selected schoolchildren (6 to 14 years; 556 boys and 538 girls) underwent clinical evaluation...

Epidemiology Goiter: In iodine-deficient areas, goiter prevalence may be as high as 80%. After correction of iodine deficiency, prevalence decreases slowly over a generation’s time to but not below a few per cent. In iodine-sufficient areas, cross-sectional studies showed a decline in frequency of diffuse goiter and, in contrast, an increase of thyroid nodules and thyroid antibodies with age. F...

BACKGROUND Many authors have claimed that hyperthyroidism protects against thyroid cancer and believed that the incidence of malignancy is lower in patients with toxic multinodular goiter (TMG) than in those with non-toxic multinodular goiter. But in recent studies, it was reported that the incidence of malignancy with TMG is not as low as previously thought. AIM To compare the thyroid cancer...

The usefulness of selective embolization thyroid arteries in the treatment voluminous goiters is reported on a 55-year-old patient with grade 3 goiter. Selective arteriography was used to embolize arteries. Radiological reduced volume goiter significantly, resolving compressive symptoms, improving dysphonia and respiratory mechanics, maintaining normal function. before resection can successfull...