Often, as a consequence of severe head injury, there may be haemorrhage within various intracranial compartments. In these 2 cases (Patient 1 – Figure 1, Patient 2 – Figures 2 to 11), both patients sustained a severe head injury. A combination of subdural , parenchymal and subarachnoid haemorrhage could be seen. In the second case, there is also evidence of a chronic left subdural haematoma , which may be due to prior head injury. Figure 11 is the bone window of the non-contrast CT and shows a thin vertical crack at the occiput of the skull, representing a skull fracture as a result of the head injury .