According to the contemporary classification, traumatic brain damage is divided on focal and diffuse brain injuries, and primary and secondary brain damage. The aim of this paper is to emphasize the necessity of the forensic-neuropathological examination in the determination of the diffuse brain injuries. In those injuries frequently neither the most sophisticated clinical-investigation techniques like CT and MRI, nor the routine post-mortem forensic pathological examination, give any results with discovering an intracranial mass lesion, despite the fact that patients had manifested a serious brain failure. In a series of 80 cases with closed head injuries where forensic-neuropathological examination has been undertaken (examination of a fixed brain tissue and immunohistochemistry using monoclonal antibodies against β-amyloid precursor protein), the occurrence of the diffuse brain injuries in the absence of any other massive intracranial lesion has been established in 14 (17,7%) of the cases. Hence, forensic-neuropathological examination has been the only way to establish the diagnosis of the brain injury that caused a serious brain failure and in most of them occurred as a concrete cause of death. This method has already been affirmed in the forensic medicine science and has been implemented in a Recommendation No 99 of the Council of Europe where medico-legal autopsy rules are given, thus, establishing it as an unavoidable part of the daily forensic medicine practice.
Keywords: diffuse axonal injury - diffuse vascular injury - closed head injuries - traumatic brain damage - diffuse brain damage.