foramen magnum造句

1、Tumors of the foramen magnum are mostly benign.
枕骨大孔区肿瘤，多数是良性肿瘤。

2、Objective: To explore the operation modalities for anomalies of the foramen magnum region.
目的：探讨治疗枕骨大孔区畸形的手术方法。

3、Objective To study the diagnosis and outcome of tumors in the foramen magnum region.
目的研究枕大孔区肿瘤的诊断与手术疗效。