Diagnostic performance of 2015 American Thyroid Association guidelines and inter- observer variability in assigning risk category Zhiyu Pang, Myles Margolis, Ravi J. Menezes, Hassaan Maan, Sangeet Ghai European Journal of Radiology Open Volume 6, Pages 122-127 (January 2019) DOI: 10.1016/j.ejro.2019.03.002 Copyright © 2019 Terms and Conditions
Fig. 1 Sonographic patterns of 4, 4b, 5 and 5x in the study a. Sonographic pattern of Intermediate Suspicion (4): Hypoechoic solid nodule with smooth margins without microcalcifications, extrathyroidal extension, or taller than wide shape. 40-year-old female with papillary thyroid carcinoma. b. Sonographic pattern 4b: Hypoechoic and isoechoic areas to adjacent thyroid parenchyma, solid nodule with smooth margins without microcalcifications, extrathyroidal extension, or taller than wide shape. 48-year-old female with benign thyroid nodule. c. Sonographic pattern of high suspicion (5): solid hypoechoic nodule with microcalcifications. 40-year-old female with papillary thyroid carcinoma. d. Sonographic pattern of 5x: isoechoic nodule with taller-than-wide shape. 36-year-old female with benign thyroid nodule. European Journal of Radiology Open 2019 6, 122-127DOI: (10.1016/j.ejro.2019.03.002) Copyright © 2019 Terms and Conditions