Guan X X
Cancer Hospital, Zhongshan Medical College, Guangzhou.
Zhonghua Zhong Liu Za Zhi. 1990 Mar;12(2):117-9.
From March 1985 to September 1988, 38 out-patients with nasopharyngeal carcinoma (NPC), proven by pathology and examined by CT scan or MRI with involvement of deep upper cervical lymph nodes larger than 2 cm, were treated. The invasion of the poststyloid space is probably caused by metastases of the lymph nodes deep-seated in the neck and not by direct infiltration of the primary tumor. In TNM staging, it should be considered as N1, but not T3. As to the design of radiotherapy for these cases, the upper margin of the cervical field should be moved up to the level of the external auditory meatus in order to encompass the base of the skull. If lymph nodes in the mastoid cells on the same side are involved, beta-beams with energy not lower than 15 Mev should be used to ensure enough dose in the target volume.
1985年3月至1988年9月，对38例经病理证实、CT扫描或MRI检查显示有大于2cm的上颈部深部淋巴结受累的鼻咽癌门诊患者进行了治疗。茎突后间隙受侵可能是由颈部深部淋巴结转移引起，而非原发肿瘤的直接浸润。在TNM分期中，应将其视为N1，而非T3。对于这些病例的放射治疗设计，颈部野的上界应上移至外耳道水平，以包括颅底。如果同侧乳突气房的淋巴结受累，应使用能量不低于15Mev的β射线，以确保靶区内有足够剂量。
