Humans 6 Thyroid Nodule human 6 thyroid nodule 6 Thyroid Neoplasms 4 diagnostic imaging 4 thyroid tumor 4 Article 3 Prospective Studies 3 Retrospective Studies 3 Thyroid nodule 3 Ultrasonography 3 adult 3 controlled study 3 echography 3 female 3 fine needle aspiration biopsy 3 human tissue 3 major clinical study 3 male 3 prospective study 3 retrospective study 3 sensitivity and specificity 3 thyroid cancer 3 Diagnosis, Differential 2 Diseases 2 Sensitivity and Specificity 2 Thyroid cancer 2 diagnostic test accuracy study 2 differential diagnosis 2