1、Tumors of the foramen magnum are mostly benign.
枕骨大孔區(qū)腫瘤，多數(shù)是良性腫瘤。

2、Objective: To explore the operation modalities for anomalies of the foramen magnum region.
目的：探討治療枕骨大孔區(qū)畸形的手術(shù)方法。

3、Objective To study the diagnosis and outcome of tumors in the foramen magnum region.
目的研究枕大孔區(qū)腫瘤的診斷與手術(shù)療效。