Keywords : CCA, cervical lymph node, cervical node dissection, clavicle, common carotid artery, cricoid cartilage, differentiated thyroid cancer, DTC, fine needle aspiration, FNA, hemithyroidectomy, hyoid bone, IJV, internal jugular vein, mandible, papillary thyroid cancer, PTC, SCM, Society of Radiologists in Ultrasound, SRU, sternal notch, sternocleidomastoid muscle, thyroid cancer, thyroid ultrasound, thyroidectomy, total thyroidectomy, trapezius muscle