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KMID : 1038120190520020152
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Clinical Endoscopy
2019 Volume.52 No. 2 p.152 ~ p.158
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Predictive Factors for Inaccurate Diagnosis of Swollen Lymph Nodes in Endoscopic Ultrasound-Guided Fine Needle Aspiration
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Fujii Yuki
Kanno Yoshihide
Koshita Shinsuke
Ogawa Takahisa
Kusunose Hiroaki
Masu Kaori
Sakai Toshitaka
Yonamine Keisuke
Kawakami Yujiro
Murabayashi Toji
Kozakai Fumisato
Noda Yutaka
Okada Hiroyuki
Ito Kei
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Abstract
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Background/Aims: This study aimed to identify the predictive factors for inaccurate endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) diagnosis of swollen lymph nodes without rapid on-site cytopathological evaluation.
Methods: Eighty-three consecutive patients who underwent EUS-FNA for abdominal or mediastinal lymph nodes from January 2008 to June 2017 were included from a prospectively maintained EUS-FNA database and retrospectively reviewed. The sensitivity, specificity, and accuracy of EUS-FNA for the detection of neoplastic diseases were calculated. Candidate factors for inaccurate diagnosis (lymph node size and location, needle type, puncture route, number of passes, and causative disease) were evaluated by comparison between accurately diagnosed cases and others.
Results: The final diagnosis of the punctured lymph node was classified as neoplastic (65 cases: a metastatic lymph node, malignant lymphoma, or Crow-Fukase syndrome) or non-neoplastic (18 cases: a reactive node or amyloidosis). The sensitivity, specificity, and accuracy were 83%, 94%, and 86%, respectively. On multivariate analyses, small size of the lymph node was the sole predictive factor for inaccurate EUS-FNA diagnosis with a significant difference (odds ratios, 19.8; 95% confidence intervals, 3.15?124; p=0.0015).
Conclusions: The lymph node size of <16 mm was the only independent factor associated with inaccurate EUS-FNA diagnosis of swollen lymph nodes.
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KEYWORD
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Lymphadenopathy, Accuracy, Endosonography, Risk factors, Lymphoma
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