Traumatic primary brain stem haemorrhage: A clinical and experimental study

Author(s): Zuccarello M, Fiore DL, Trincia G, De Caro R, Pardatscher K, et al.


We report 36 cases of post-traumatic "primary brain stem haemorrhage" visualized by the CT scan and confirmed at autopsy. Clinical experience shows that many technical factors influence the inability to visualize brain stem haemorrhages. Experimental injection of fresh blood into the pons and midbrain of cadavers shows that lesions as small as 0.25 ml in volume may be visualized. The volume and the anatomical configuration of traumatic lesions of the brain stem extended over a rostro-caudal direction, and their proximity to bony structures at the base of the skull are obstacles to the visualization of brain stem haemorrhages.

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