Several sonographic features are associated with an increased likelihood of malignant thyroid pathology. (A) Hypoechoic nodule medial to the carotid artery;

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Several sonographic features are associated with an increased likelihood of malignant thyroid pathology. (A) Hypoechoic nodule medial to the carotid artery; arrow denotes interface between nodule and artery; (B) Microcalcifications within a nodule; (C) Irregular margins; (D) Increased intranodular vascularity as seen on duplex imaging; (E) “Taller than wide” appearance on transverse view. (Reprinted from: (A) Reprinted from Braakman HM, et al. An unusual cause of transient neurologic deficits: compression of the carotid artery by a thyroid cystic nodule. J Stroke Cerebrovasc Dis. 2010 Jan;19(1):73-74. (B) Jin J, McHenry C. Thyroid incidentaloma. Best Pract Res Clin Endocrinol Metab. 2012 April;26(1):83–96. (C–E) Kangelaris G, et al. Role of ultrasound in thyroid disorders. Otolaryngol Clin North Am. 2012 April;7(2):197–210 with permission from Elsevier.) Source: Chapter 4. Ultrasound of the Neck: Thyroid and Parathyroid, Surgical and Interventional Ultrasound Citation: Schrope B. Surgical and Interventional Ultrasound; 2014 Available at: http://accesssurgery.mhmedical.com/DownloadImage.aspx?image=/data/books/schr1/schr1_c004f005d.png&sec=45954998&BookID=698&ChapterSecID=45954784&imagename= Accessed: October 17, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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