Clinical imaging
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The purposes of this study were to evaluate the incidence of suspiciously malignant change on ultrasound (US) in thyroid nodules after initial benign US and cytologic results and to investigate the associated US characteristics and the management of these nodules. ⋯ Follow-up US should be recommended rather than to repeat FNAB for thyroid nodules with initial benign US and cytologic results even if they later develop suspiciously malignant US features after FNAB.