摘要
Objective:Toevaluateunusualpossiblecausesandclinicalpresentationsofhemifacialspasm(HFS).Methods:Theauthorsreviewed1642casesofHFS.Assessmentswerebasedonclinicalfeatures,3-dimensionaltime-of-flightmagneticresonanceangiography,andsurgicalfmdings.Causesotherthanneurovascularcompressionattherootexitzoneofthefacialnervewereinvestigatedandunusualclinicalpresentationswerenoted.Results:Nine(0.5%)patientshadasecondarycausativestructurallesion,7patientshadatumor,andtheremaining2hadavascularmalformation.Directcompressionbydolichoectaticvertebrobasilararterywasnotedin
出版日期
2009年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
