ADC Values in Distinction of Benign and Malignant Thyroid Nodules

Abstract

World Clin J Med Sci 2017;1(2): [96][97][98][99][100][101][102] 96 he prevalence of the thyroid nodules in general population is fairly high. They can be detected with manual palpation in 4% -7%.1,2 On ultrasound examination (USG) in 10% -40%, and by pathological examination at autopsy in 50%. 3,4 Thyroid nodules are more frequently seen in adults and women.5 Their importance is primarly related to necessity of excluding a thyroid malignancy. 6 Fortunately, compared with high prevalence of thyroid nodules, malignancy is rare.In recent studies USG characteristics were evaluated in terms of potential feature of thyroid cancers. 7,8 In spite of presence of well known sonographic data, there is still an overlap in the appearance of these features. 8,9 Nuclear scintigraphy has risk of radiation exposure and not all hot or hyperfunctioning nodules detected on scintigraphy are benign.10,11 Malignancy risk for cold nodule is four times more common compared with a hot nodüle. 3,10The importance of conventional magnetic resonance imaging (MRI)