枕骨大孔区肿瘤，多数是良性肿瘤。

Tumors of the foramen magnum are mostly benign.

youdao

目的：探讨枕骨大孔区腹侧肿瘤的合理手术入路，进一步提高其手术治疗效果。

Objective: to develop rational surgical approach and to further improve the surgical outcomes to foramen magnum tumors.

youdao

目的：探讨枕骨大孔区腹侧肿瘤的合理手术入路，进一步提高其手术治疗效果。

Objective: to develop rational surgical approach and to further improve the surgical outcomes to foramen magnum tumors.

youdao