[Delayed traumatic intracranial hematomas. Value of computer tomography].

Repeated Computerized axial Tomography (CAT) scanning of 4 patients with head injuries showed tardive development of 2 intracerebral hematomas and 2 extradural hematomas. The initial CAT scans were normal; the hematomas were late in developing. The value of repeated post-traumatic CAT scanning, and the pathogenesis of late developing hematomas are discussed.