7Fulcher AS,Proto AV,Jolles H.Cystic teratoma of the mediastinum:demonstration of fat/fluid level[J].AJR,1990,154 (3):259-266.
8Sasaka K,Kurihara Y,Nakajima Y,et al.Spontaneous rupture:a complication of benign mature teratomas of the mediastinum[J].AJR,1998,170 (7):320-325.
9Yeoman LJ,Dalton HR,Adam EJ.Fat-fluid level in pleural effusion as a complication of a mediastinal dermoid:CT characteristics[J].JACT,1990,14 (9):305-308.
10Choyke PL,Hayes WS,Sesterhenn LA.Primary extragonadal germcell tumors of the retroperitoneum:Differrentiation primary and secondary tumors[J].Radiographics,1993,13 (6):1365-1375.
