n.鼻咽
The nasopharynx is the most common primary site in cerebral radionecrosis of extracranial malignancies, followed by the scalp and sinonasal tract. 鼻咽是最常見(jiàn)的原發(fā)腫瘤部位，接下來(lái)依序是頭皮以及鼻竇。
