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Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7.

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Presentation on theme: "Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7."— Presentation transcript:

1 Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7 × 1.8 cm) showing an ovoid shape, isoechogenic and smooth-margined solid component, and a centrally and e... Representative sonographic images of the 4 diagnostic categories for PCTNs. A, Benign: transverse US image of a right isthmic thyroid nodule (1.1 × 1.7 × 1.8 cm) showing an ovoid shape, isoechogenic and smooth-margined solid component, and a centrally and eccentrically located cystic component in a 30-year-old woman. The nodule was surgically resected because of coexisting thyroid malignancy (nodular hyperplasia by pathology). B, Probably benign: transverse US image of a right thyroid nodule (1.9 × 2.4 × 2.5 cm) showing an eccentric configuration with a blunt angle between the solid and cystic components (arrows) and an isoechoic solid component with a smooth margin in a 36-year-old woman. The nodule was surgically resected because of coexisting thyroid malignancy (nodular hyperplasia by pathology). C, Possibly malignant: transverse US image of a right thyroid nodule (1.9 × 2.1 × 2.2 cm) showing an eccentric configuration with an acute angle between the solid and cystic components (arrows) and an isoechoic solid component with a microlobulated margin in a 41-year-old man (nodular hyperplasia by pathology). D, Malignant: longitudinal US image of a left thyroid nodule (0.9 × 1.0 × 1.1 cm) showing an eccentric configuration with an acute angle between the solid and cystic components (arrows) and some microcalcifications in the solid component in a 36-year-old woman (classic type of papillary thyroid carcinoma by pathology). D.W. Kim et al. AJNR Am J Neuroradiol 2012;33: ©2012 by American Society of Neuroradiology

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