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Ultrasonography-Guided Core Needle Biopsy Did Not Reduce Diagnostic Lobectomy for Thyroid Nodules Diagnosed as Atypia of Undetermined Significance/Follicular Lesion of Undetermined Significance

 Yoon, Jung Hyun  ;  Kwak, Jin Young  ;  Moon, Hee Jung  ;  Kim, Eun-Kyung 
 ULTRASOUND QUARTERLY, Vol.35(3) : 253-258, 2019 
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In this study, we evaluated the role of ultrasonography-guided core needle biopsy (US-CNB) in deciding upon management for prior atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) results. From May 2013 to June 2015, 149 thyroid nodules in 149 patients diagnosed as having AUS/FLUS were included. Of the 149 thyroid nodules, 86 (57.5%) had repeat US-guided fine needle aspiration (US-FNA) and 63 (42.3%) had US-CNB. Histopathology results were divided according to various indications for diagnostic lobectomy, and rates of diagnosis that are candidates for diagnostic lobectomy were compared. Of the 149 thyroid nodules included, 86 (57.7%) were diagnosed as benign, 27 (18.1%) as malignancy, and 36 (24.2%) as inconclusive. Repeat US-FNA had significantly higher rates of inconclusive diagnosis compared with US-CNB, 33.7% to 11.1% (P = 0.003). Nodules with US-CNB had significantly higher rates of surgery or follow-up, whereas those with US-FNA had higher rates of repeated biopsy (P < 0.001). Rates of cytopathologic candidates for diagnostic lobectomy did not show significant differences between repeat US-FNA and US-CNB for any of the indications (all P > 0.05). Based on this, we concluded that US-CNB has higher diagnostic rates than did repeat US-FNA, but it does not provide superior guidance over repeat US-FNA in deciding upon diagnostic lobectomy for thyroid nodules with prior AUS/FLUS cytology results.
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1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kwak, Jin Young(곽진영) ORCID logo https://orcid.org/0000-0002-6212-1495
Kim, Eun-Kyung(김은경) ORCID logo https://orcid.org/0000-0002-3368-5013
Moon, Hee Jung(문희정) ORCID logo https://orcid.org/0000-0002-5643-5885
Yoon, Jung Hyun(윤정현) ORCID logo https://orcid.org/0000-0002-2100-3513
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