上颌骨后隙邻近有生死攸关的结构,手术暴露困难,可导致功能和面容的破坏,因此上颌骨后隙肿瘤的切除是个棘手的难题。虽有几种进路,如经腭进路、经上颌骨进路、经颞下进路及联合进路等,每一进路都有其局限性,不能充分暴露上颌骨后隙、鼻咽、中颅底和彻底切除病变。为此作者们特设计了前侧进路,已用于6例病人,效果良好。手术方法:病人取坐位,从乳突尖起向下沿 Adjacent to the maxillary posterior gap has a life-and-death structure, surgical exposure difficulties can lead to functional and facial damage, so resection of maxillary posterior tumors is a difficult problem. Although there are several routes, such as the palatal approach, the maxillary approach, the inferior temporal approach and the combined approach, etc., each approach has its limitations and can not fully expose the maxillary space, nasopharyngeal , In the skull base and complete removal of lesions. To this end, the authors specially designed the anterior approach that has been used in six patients and works well. Surgical methods: patients take the seat, from the mastoid sharp down to the edge