颅内肿瘤在 X 线片上常有明显变化。有些变化不只指出肿瘤之存在,且能确定肿瘤之位置和病理性质。本文根据我组1950—1957年428例之临床 X线材料,分析其 X 线平片上几种常见的变化与意义,并讨论其定位诊断的价值和限制。临床材料分析颅内肿瘤以胶质细胞瘤为最多,脑膜瘤与垂体瘤次之(见附表)。附表颅內肿瘤病理类型及发生率 Intracranial tumors often change significantly on the X-ray film. Some changes indicate not only the presence of the tumor, but also the location and pathology of the tumor. Based on the clinical X-ray findings of 428 cases from 1950 to 1957 in our group, this paper analyzed several common changes and their significance on X-ray films and discussed the value and limitations of their diagnosis. Clinical material analysis of intracranial tumors as the most glioblastoma, meningioma and pituitary tumor followed (see table). Schedule intracranial tumor pathology type and incidence