Noun:

1. cavity forming the upper part of the pharynx

NASabbr.(美国)国家科学院(=National Academy of Sciences)abbr.国家农业学会(=National Agricultural Society)abbr.国家听力学会(=National Auditus Society)Nasef纳西夫

1. The nasopharynx is the most common primary site in cerebral radionecrosis of extracranial malignancies, followed by the scalp and sinonasal tract.
   鼻咽是最常见的原发肿瘤部位，接下来依序是头皮以及鼻窦。