[Radiographic isodense subdural hematomas in computerized tomography].

Report on three patients in whom computer tomography (CT) revealed an isodense subdural hematoma. One patient had a CT scan 24 hours, the other 3 weeks and the third 3 months after the appearance of clinical symptoms. It is therefore impossible to predict at what stage a subdural hematoma will appear isodense in the CT. The criteria for identification of isodense subdural hematoma are reviewed.