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Fig. 2 | Cancer Communications

Fig. 2

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

Fig. 2

Endoscopic ultrasound (EUS) images of a retropharyngeal lymph node (RLN) in a patient with suspected recurrent nasopharyngeal carcinoma. a The enlarged RLN, which was roughly round and hypoechoic, was visualized by EUS. The RLN was located anterior to the carotid sheath, which included the internal carotid artery (ICA) and internal jugular vein (IJV); the RLN was also located beneath the lateral nasopharynx. b A fine needle was used to puncture the RLN for aspiration under real-time EUS guidance. 1 = tensor veli palatini; 2 = eustachian tube; 3 = levator veli palatini; 4 = longus capitis; 5 = RLN; 6 = ICA; 7 = IJV; 8 = needle; 9 = RLN

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