[Localization of frontobasal traumatic cerebrospinal fluid fistulas. Comparison of radiologic and surgical findings].

Computed tomographic and surgical findings were compared in 30 patients with traumatic frontobasal cerebrospinal fluid fistula. Radiological signs were extension of fractures of the rhinobasis, localized opacification of paranasal sinuses, and localized intracranial air collections. Exact localization of dural tears was only possible in about half of all patients (16 of 30). In conclusion there must be surgical inspection of all fractures of the skull base, and only isolated injuries could be treated by selective surgery.