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Fig. 1 | Cancer Communications

Fig. 1

From: Ultrasound-guided fine needle aspiration of retropharyngeal lymph nodes after radiotherapy for nasopharyngeal carcinoma: a novel technique for accurate diagnosis

Fig. 1

Study protocol for sampling of retropharyngeal lymph nodes (RLNs) with fine needle aspiration under endoscopic ultrasound guidance in post-radiotherapy patients with nasopharyngeal carcinoma. The RLNs were evaluated via magnetic resonance imaging using the New Response Evaluation Criteria in Solid Tumors: Revised RECIST guideline (version 1.1). European Journal of Cancer. 2009, (45): 228–247

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