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Current status and diagnostic values of the Bethesda system for reporting thyroid cytopathology in a papillary thyroid carcinoma–prevalent area
Author(s) -
Lee YouBin,
Cho Yoon Young,
Jang Ju Young,
Kim Tae Hyuk,
Jang Hye Won,
Chung Jae Hoon,
Oh Young Lyun,
Kim Sun Wook
Publication year - 2017
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.24578
Subject(s) - medicine , atypia , thyroid neoplasm , cytopathology , thyroid carcinoma , thyroid , malignancy , fine needle aspiration , radiology , bethesda system , pathology , cytology , biopsy
Background Most studies validating the Bethesda system for reporting thyroid cytopathology (TBSRTC) have been conducted in Western countries. We explored the current status of TBSRTC in an area where most thyroid malignancies are papillary carcinomas. Methods Fine‐needle aspirations (FNAs) of thyroid nodules performed in 2013 were retrospectively analyzed and the results were compared to final pathology on resection. Results Of 1947 FNAs, 1925 (98.9%) were reported using TBSRTC. Among 381 resected lesions, 27.3% of nondiagnostic, 19.6% of benign, 56.0% of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS), 33.3% of follicular neoplasm/suspicious for a follicular neoplasm (FN/SFN), 97.7% of suspicious for malignancy, and 100.0% of malignant lesions were malignant on pathology. The sensitivity and specificity of FNA using TBSRTC were 96.7% and 84.1%, respectively. Conclusion TBSRTC works well in an area in which papillary thyroid cancer is prevalent; however, it may underestimate malignancy rates in AUS/FLUS, benign, and nondiagnostic categories. © 2016 Wiley Periodicals, Inc. Head Neck 39: 269–274, 2017

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