García Reija M F, Izquierdo M, Blanco Rueda J A, García Cantera M, Verrier Hernández A
Servicio Regional de Cirugía Maxilofacial, Hospital Universitario del Río Hortega, C/Cardenal Torquemada s/n. 47010 Valladolid.
Acta Otorrinolaringol Esp. 2001 Apr;52(3):261-5. doi: 10.1016/s0001-6519(01)78206-4.
The ameloblastomas are benign odontogenic tumors locally aggressive that between 15-20% are located in the upper maxillary. The maxillary ameloblastomas have worse forecast than their mandibular homologous upon presenting greater index of postsurgery relapses and a greater percentage of malignancy. Their proximity to nasal cavity, orbit and skull base suppose a risk added by the probability of extension to these structures.
成釉细胞瘤是具有局部侵袭性的良性牙源性肿瘤，其中15% - 20%位于上颌骨。上颌成釉细胞瘤的预后比下颌同源肿瘤更差，术后复发率更高，恶性百分比也更高。它们靠近鼻腔、眼眶和颅底，因有可能侵犯这些结构而增加了风险。
