Frontal extradural hematomas.

In a series of 1841 severe head injuries, 97 cases of epidural hematomas were observed. Among these there were 13 in the frontal area, i.e. 13.4%. The nine cases of frontal extradural hematomas not previously reported are described. Five of them had "pure" extradural frontal clots. In four cases the epidural hematoma was associated with intradural lesions. The "pure" frontal epidural cases presented a subacute to chronic course of a benign character. All of these patients survived and made a complete recovery after operation. A malignant, stormy and fatal course was observed in the "mixed" cases.