[Time of formation of traumatic intracranial hematomas]

Biochemical study of the methemoglobin concentration (60 cases) and histological examination (40 of intracranial hematomas removed in different periods after the trauma confirmed the assumption that the main volume of these hematomas forms within the first minutes and hours after the trauma as a rule. The curve of the dependence of the methemoglobin concentration in the hematoma on the time of its formation allows the period of time which had elapsed after the trauma to be determined.