目的·探索利用表面涂抹式荧光探针细胞间充质-上皮转化因子（cellular-mesenchymal epithelial transition factor，c-Met）结合肽（c-Met-binding peptide，cMBP）-吲哚菁绿（indocyanine green，ICG）实现术中实时荧光成像诊断口腔鳞状细胞癌（oral squamous cell carcinoma，OSCC）颈部淋巴结转移及淋巴结包膜外侵犯（extra-nodal extension，ENE）的可行性。方法·选取5名上海交通大学医学院附属第九人民医院原发性OSCC患者作为研究对象，通过制备、配制荧光探针cMBP-ICG，采用表面涂抹法对入组的患者颈部淋巴结清扫切除的可疑淋巴结进行实时荧光成像。收集并整理患者临床资料、病理结果及淋巴结实时荧光成像的荧光强度（fluorescence intensity，FI）数据，并根据cMBP-ICG实时荧光成像的FI对淋巴结转移与ENE进行预测。结果·术中对可疑淋巴结进行cMBP-ICG实时荧光成像，获得不同FI的实时成像结果。对5例患者的49个可疑淋巴结的分析结果显示，cMBP-ICG预测淋巴结转移的敏感度为100%，特异度为84%，阳性预测值（positive predictive value，PPV）为67%，阴性预测值（negative predictive value，NPV）为100%。cMBP-ICG预测淋巴结ENE的敏感度为100%，特异度为93%，PPV为63%，NPV为100%。结论·表面涂抹式荧光探针cMBP-ICG术中实时荧光成像能较为有效地识别OSCC转移淋巴结及ENE，可作为术中诊断淋巴结转移及ENE的辅助方法。

Objective ·To explore the feasibility of intraoperative real-time fluorescence imaging in the diagnosis of oral cancer cervical lymph node metastasis and extra-nodal extension (ENE) in the patients with oral squamous cell carcinoma (OSCC) by using the surface-smeared fluorescent probe cellular-mesenchymal epithelial transition factor (c-Met)?binding peptide (cMBP)? indocyanine green (ICG). Methods ·The five patients with primary OSCC in Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine were selected as the research subjects. The fluorescent probe cMBP-ICG was prepared, and real-time fluorescence imaging was performed by surface smear method on the suspicious lymph nodes of the enrolled patients who underwent neck lymph node dissection. The clinical information, the pathological results and the fluorescence intensity (FI) values of lymph node real-time fluorescence imaging were collected and sorted, and lymph node metastasis and ENE were predicted according to the FIs of cMBP-ICG real-time fluorescence imaging. Results ·Intraoperative cMBP-ICG real-time fluorescence imaging of suspicious lymph nodes were performed, and imaging results of different FIs were obtained in real time. The results of 49 suspicious lymph nodes in the 5 patients showed that the sensitivity of cMBP-ICG in predicting lymph node metastasis was 100%, the specificity was 84%, the positive predictive value was 67%, and the negative predictive value was 100%. The sensitivity of cMBP-ICG in predicting lymph node ENE was 100%, the specificity was 93%, the positive predictive value was 63%, and the negative predictive value was 100%. Conclusion ·Intraoperative cMBP-ICG real-time fluorescence imaging can effectively identify lymph node metastatic and ENE in OSCC, which can provide an auxiliary method for intraoperative diagnosis of lymph node metastasis and ENE.