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作者分析74例手术及临床证实的小脑桥脑角肿瘤碘油脑室造影图像,认为对小脑桥脑角肿瘤的定位诊断,有重要意义的是申脑导水管与第四脑室侧移和后移,有的病例井可见第四脑室上端的移位较第四脑室主体明显,使在前后位片中产生这两部份不连贯的影象。侧位片中第四脑室前缘有角度形成。上述征象在正、侧位片中可同时出现,亦可分别出现,占本组病例的63%。
The author analyzed 74 cases of surgical and clinically confirmed cerebellar pontine angle tumors lipiodol intraventricular angiography images, that the significance of the positioning diagnosis of cerebellopontine angle tumors is the Shenna aqueduct and the fourth ventricle lateral migration and backward. In some case wells, the displacement of the upper end of the fourth ventricle is more pronounced than that of the main body of the fourth ventricle, resulting in two incoherent images in the anterior-posterior position. The angle of the leading edge of the fourth ventricle in the lateral film is formed. The above signs can appear at the same time in the positive and lateral films, and they can also appear separately, accounting for 63% of the cases.