脑脊液耳漏可分为后天性或先天性。后天性多见,常由钝性或手术创伤引起。先天性者常为迟发性耳漏。缺损部位如在颞骨颅板,多能为X线检查发现;对迷路瘘管,由于显影模糊,不易定位。作者报告1例2岁男孩,曾先后发生三次肺炎球菌性脑膜炎,疑有颞骨缺损可能,作X线断层摄片,发现右侧内耳道较大;以脊髓造影剂碘苯酯(puntopaque)检查颅后窝,见有瘘管从扩大的右内耳道上面通入上鼓室;侧面断层片见瘘管位于前庭之前上,耳蜗之上,在鼓室盖与面神经管水平部之间。行乳突根治术,以找寻瘘管进行 Cerebrospinal fluid otorrhea can be divided into acquired or congenital. Acquired more common, often caused by blunt or surgical trauma. Congenital often delayed eyelid. Defective sites, such as in the temporal bone cranial board, and more for X-ray examination found; lost fistula, due to the development of fuzzy, not easy to locate. The authors report a 2-year-old boy who had had pneumococcal meningitis three times in a row and suspected temporal bone defects for X-ray tomography and found that the right ear canal was larger. The spinal cord contrast agent, puntopaque, Posterior fossa, see a fistula from the enlarged access to the upper right inner ear canal above the tympanum; lateral fistula seen fistula in the vestibule on the cochlea above the level between the tympanic cap and facial nerve tube. Mastoid radical surgery to find the fistula