[The pneumocephalus in cranio-cerebral trauma (author's transl)].

The accident surgeon is often surprised to see unusual intracranial translucencies on X-ray films of persons with skull injuries. Inexperienced physicians are often unable to immediately identify these translucencies as air enclosures in the intracranial cavity. Physicians not acquainted with pneumoencephalography commonly employed so far in neurological examinations will find it difficult to recognize in the accumulated air the contours of the ventricular, cerebral convolution and cisternal systems. Hence, the relatively rare event of air penetrating into the intracranial space as a result of an injury, is described here on the basis of two of our patients.