title: Thyroid imaging reporting and data system in assessment of cytological Bethesda Category III thyroid nodules.
abstract: OBJECTIVE
  To assess the usefulness of thyroid imaging reporting and data system (TI-RADS) for cytological Bethesda Category III thyroid nodules (TNs).
  
  
  METHODS
  This retrospective study included 121 patients with 121 TNs classified as Bethesda Category III at fine needle aspiration (FNA) cytology and thereafter underwent surgery. The TNs were classified according to US TI-RADS category and the malignancy risk of each category was calculated.
  
  
  RESULTS
  Surgical pathology confirmed 43 (35.5%) malignant and 78 (64.5%) benign TNs. The malignancy risks of categories 3, 4a, 4b, 4c, and 5 TNs were 0%, 4.0%, 12.5%, 62.2%, and 100%, respectively. For those >10 mm (n = 55), the malignancy risks were 0%, 6.2%, 12.5%, 73.3%, and 100%, respectively, whereas for those ≤10 mm (n = 66), the risks were 0%, 0%, 12.5%, 56.7%, and 100%, respectively.
  
  
  CONCLUSIONS
  Bethesda Category III TNs without suspicious US features or those ≤10 mm with only one suspicious US feature can be followed up with US.
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Department of Ultrasound, Ningbo First Hospital, Ningbo, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.
authors: Feng
authors: F
authors: Mao
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Hui-Xiong
authors: HX
authors: Xu
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Chong-Ke
authors: CK
authors: Zhao
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Xiao-Wan
authors: XW
authors: Bo
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Xiao-Long
authors: XL
authors: Li
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Dan-Dan
authors: DD
authors: Li
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Bo-Ji
authors: BJ
authors: Liu
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Yi-Feng
authors: YF
authors: Zhang
authors: Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China.|Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.
authors: Jun-Mei
authors: JM
authors: Xu
authors: Thyroid Institute, Tongji University School of Medicine, Shanghai, China.|Shanghai Center for Thyroid Diseases, Shanghai, China.|Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
authors: Shen
authors: S
authors: Qu
mesh_terms: D000328:Adult; D000368:Aged; D044963:Biopsy, Fine-Needle / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012107:Research Design / Q000639:trends*; D012189:Retrospective Studies; D016606:Thyroid Nodule / Q000000981:diagnostic imaging* / Q000473:pathology
keywords: AUS/FLUS; Bethesda Category III; Thyroid nodule; thyroid imaging reporting and data system; ultrasound