[Echography and cerebral gammagraphy in craniofacial injuries]

The authors review the aid provided and sometimes essential nature of echographic and isotopic studies in cranio-facial trauma when seeking neurological complications -in particular intracranial haematomas and cerebrospinal fluid fistulas. They describe the principles of each of these technics, their indications, performance and limitations. These examinations are simple, rapid and perfectly harmless but must be carried out in specialised departments, which limits their use.