Abstract
The Endocrine Pathology Society Working Group developed the nomenclature of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) to replace the previously known noninvasive encapsulated follicular variant of papillary thyroid carcinoma (FVPTC). The histologic criteria for diagnosing NIFTP was firstly refined in 2016 and then revised in 2018. This chapter reviews and discusses the experiences of presurgical cytologic assessment of histology-confirmed NIFTP in North America, including distribution of NIFTP across the categories outlined in The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) and its potential impact on risk of malignancy (ROM) among the TBSRTC categories, as well as molecular profiles of NIFTP revealed by the commercially available molecular tests, which are utilized as an adjunct to cytology.
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Lew, M., Jing, X. (2023). Role of FNA Cytology in Preoperative Prediction of NIFTP: Practical Experiences in North America. In: Kakudo, K., Liu, Z., Jung, C.K., Hirokawa, M., Bychkov, A., Lai, CR. (eds) Thyroid FNA Cytology. Springer, Singapore. https://doi.org/10.1007/978-981-99-6782-7_41
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DOI: https://doi.org/10.1007/978-981-99-6782-7_41
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