2Bialek EJ,Jakubowski W,Karpinska G. Role of ultrasonography in diagnosis and differentiation of pleomorphic adenomas:work in progress[J].Archives of Otolaryngology Head and Neck Surgery,2003,(09):929-933.
3Sharma G, Jung AS,Maceri DR, et al. US-guided fine-needle as- piration of major salivary gland masses and adjacent lymph nodes: Accuracy and impact on clinical decision making [ J ]. Radiology, 2011, 259:471-478.
4Yerli H, Aydin E, Haberal N, et al. Diagnosing common parotid tumors with magnetic resonance imaging including diffusion- weighted imaging vs fine-needle aspiration cytology: A compara- tive study [J]. Dentomaxillofac Radiol, 2010, 39:349-355.
6Klehk,et al.The value of sonagraphy in sali-vary gland Tumors[].HNO.
7Ohyachi N.Vltrasonic study on tissues of pa-rotid tumors measurement of attenuation of ul-trosound within tumor in vivo[].N:ppon Jibinko-ka Gakkai Kaiho.1992
