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Performance Characteristics of Endoscopic Ultrasonography-Guided Fine Needle Aspiration for Differentiating Benign from Malignant Subepithelial Tumors
EUS, endoscopic ultrasonography; FNA, fine needle aspiration; TN, true negative; FN, false negative; FP, false positive; TP, true positive.
a)One patient who had the diagnosis of leiomyoma by FNA, referred to operation due to the size of 40 mm and the presence of cystic structures. Final diagnosis was gastrointestinal stromal tumor.
