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[Cranial CT as basis for reconstruction of events and identification of a weapon].

Radiological findings, especially CT scans, are of great importance in the reconstruction of events and may also be helpful to identify the weapon used. This is illustrated by a briefly survived craniocerebral trauma whose origin was controversially discussed. A 51-year-old man had suffered a severe craniocerebral trauma in a robbery. The CT scans revealed fractures of the left parietal region, among them a spider's web fracture, on the cause of which opinions differed (fall or blow). It was also unclear which of the three confiscated objects (empty wine bottle, bending iron, wooden hammer) was used for the assault. Evaluation of the CT findings showed that at least two blows had obviously been inflicted to the cranial skull. Apart from several injuries of the scalp due to blows, the typical combination of findings in the occipital region and contre-coup lesions suggested that the head had also hit the ground due to a fall. The soft tissue injuries may have been caused by all the three confiscated objects. The bony injuries were most probably caused by the bending iron, whereas the wooden hammer and the wine bottle could be ruled out as the causative weapon or were at least highly improbable.