论文部分内容阅读
作者根据解剖观察提出了关于三叉神经假定位体征机理的一种解释。解剖观察结果:①据测量,在颅腔总容量中,后颅窝占12%,天幕上占14%。作者认为,与肿瘤存在有关的颅内血流量降低、脑组织液减少。和脑脊液移出,无论肿瘤在天幕上或天幕下,作用相同。所以,在后颅窝占位性病变中,脑移位可能是重要的因素。②据尸体测量结果,枕大孔区只是天幕切迹区的20%,故天幕切迹是后颅窝范畴内远大于枕大孔的一个开口。桥脑上缘距鞍背平均6(2～12)mm,因此桥脑有
The authors put forward an explanation of the mechanism of the trigeminal pseudo-positron signs based on anatomic observations. Anatomical observation results: According to the measurement, in the total volume of the cranial cavity, posterior fossa accounted for 12%, on the canopy accounted for 14%. The authors suggest that the intracranial blood flow associated with the presence of the tumor is reduced and brain tissue fluid is reduced. And cerebrospinal fluid removed, regardless of tumor in the sky or under the sky, the same effect. Therefore, in the posterior fossa occupying lesions, brain displacement may be an important factor. ② According to the body measurements, the occipital foramina area is only 20% of the apodized notch area, so the apophysis notch is an opening much larger than the foramen magnum in the posterior fossa area. Pons on the edge of the saddle from the average 6 (2 ~ 12) mm, so pontine there