Acute cerebral swelling can also often produce herniation of the cerebelllar tonsils into the foramenmagnum. Note the cone shape of the tonsils around the medulla in this cerebellum.
急性大脑肿胀在枕骨大孔处也经常形成小脑扁桃体疝，注意小脑髓质附近的锥体形状的小脑扁桃体。
2
Objective: to develop rational surgical approach and to further improve the surgical outcomes to foramenmagnum tumors.
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。
3
Objective: To explore the operation modalities for anomalies of the foramenmagnum region (AKMR).