PMID- 29193910 OWN - NLM STAT- MEDLINE DCOM- 20180727 LR - 20180727 IS - 1097-0339 (Electronic) IS - 1097-0339 (Linking) VI - 46 IP - 2 DP - 2018 Feb TI - Does noninvasive follicular thyroid neoplasm with papillary-like nuclear features have distinctive features on sonography? PG - 139-147 LID - 10.1002/dc.23863 [doi] AB - BACKGROUND: The noninvasive encapsulated follicular variant of papillary carcinoma (nEFVPTC) has recently been reclassified to "noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)," removing this entity from the malignant category. This re-categorization has had major implications for clinical management. NIFTP has overlapping cytohistologic features with papillary thyroid carcinoma (PTC) and with follicular adenomas (FA), but sonographic data comparing NIFTP to PTC and FA is lacking. Our study examines the sonographic features of NIFTP as compared with PTC and FA. METHODS: Ultrasound scans and Doppler blood flow from subjects who had pre-surgical sonograms and fine needle aspiration biopsies with final surgical pathology diagnoses of NIFTP/nEFVPTC, classical PTC, and FA between 01/2013-08/2016 were assessed. Sonographic and Doppler features as well as Bethesda System (TBS) diagnoses were recorded and analyzed. RESULTS: 40 NIFTP, 58 classical PTC, and 23 FA cases were included. The most common NIFTP pre-surgical TBS cytology diagnosis was Atypia of Undetermined Significance (AUS/FLUS) (40%). NIFTP cases predominantly displayed wider-than-tall shape (100%), smooth borders (75%), occurrence in multinodular glands (82.5%), heterogeneous echogenicity (50%), both perinodular and intranodular Doppler flow patterns (70%), minimal Doppler flow grade (62.5%), and no calcifications (90%). CONCLUSIONS: Our study demonstrates that NIFTP, PTC, and FA display several distinguishing and overlapping sonographic and Doppler features. Sonographic features appear to complement cytology findings and may help raise pre-operative concern for NIFTP in the proper clinical setting, potentially leading to a more conservative management approach. CI - (c) 2017 Wiley Periodicals, Inc. FAU - Brandler, Tamar C AU - Brandler TC AUID- ORCID: 0000-0001-8272-9900 AD - Department of Pathology, New York University School of Medicine, New York. FAU - Yee, Joseph AU - Yee J AD - Department of Radiology, New York University School of Medicine, New York. FAU - Zhou, Fang AU - Zhou F AD - Department of Pathology, New York University School of Medicine, New York. FAU - Cho, Margaret AU - Cho M AD - Department of Pathology, New York University School of Medicine, New York. FAU - Cangiarella, Joan AU - Cangiarella J AD - Department of Pathology, New York University School of Medicine, New York. FAU - Wei, Xiao-Jun AU - Wei XJ AD - Department of Pathology, New York University School of Medicine, New York. FAU - Yee-Chang, Melissa AU - Yee-Chang M AD - Department of Pathology, New York University School of Medicine, New York. FAU - Sun, Wei AU - Sun W AD - Department of Pathology, New York University School of Medicine, New York. LA - eng PT - Journal Article DEP - 20171129 PL - United States TA - Diagn Cytopathol JT - Diagnostic cytopathology JID - 8506895 SB - IM MH - Carcinoma, Papillary, Follicular/diagnostic imaging/*pathology MH - Female MH - Humans MH - Male MH - Middle Aged MH - Thyroid Neoplasms/diagnostic imaging/*pathology MH - Ultrasonography, Doppler/standards OTO - NOTNLM OT - Doppler OT - FNA OT - NIFTP OT - noninvasive encapsulated follicular variant of papillary thyroid carcinoma OT - noninvasive follicular thyroid neoplasm with papillary-like nuclear features OT - ultrasound EDAT- 2017/12/02 06:00 MHDA- 2018/07/28 06:00 CRDT- 2017/12/02 06:00 PHST- 2017/09/11 00:00 [received] PHST- 2017/10/18 00:00 [revised] PHST- 2017/11/06 00:00 [accepted] PHST- 2017/12/02 06:00 [pubmed] PHST- 2018/07/28 06:00 [medline] PHST- 2017/12/02 06:00 [entrez] AID - 10.1002/dc.23863 [doi] PST - ppublish SO - Diagn Cytopathol. 2018 Feb;46(2):139-147. doi: 10.1002/dc.23863. Epub 2017 Nov 29.