2[1]John FC, Bhuvanesh S, Dennis HK. Hemangiopericytoma of head and neck[J]. Laryngoscope, 1999, 109:1409 ~ 1411.
3[4]Bianchi B, Poli T, Bertolini F, et al. Malignant hemangiopericytoma of infratemporal fossa:report of 106cases[J].J Oral Maxillofac Surg, 2002,60: 309~ 312.
4[5]Sabini P, Josephson GD,Yung RT, et al. Hemangiopericytoma presenting as a congenital midline nasal mass[J].Arch Otolaryngol Head Neck Surg, 1998,124:202~204.
5[6]Lin JC, Hsu CY, Jan JS, et al. Malignant hemangiopericytoma of the floor of the mouth: report of a case and review of the literature[J].J Oral Maxillofac Surg, 1996,54:1020~ 1023.