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The purpose of this study was to retrospectively evaluate the efficacy of ultrasonography-guided percutaneous ethanol injection (PEI) for neck recurrence of papillary thyroid carcinoma (NR-PTC). Twenty-seven patients (19–80 years old; mean, 53.2) with 47 NR-PTCs were treated by PEI and were followed-up (14–38 months; mean, 28.2). Ethanol (99%) was repeatedly injected with adjusting needle position...
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