Subarachnoid haemorrhage in a left frontoparietal and right temporo-parieto-occipital distribution. Small volume of haemorrhage in the basal cisterns. Left tentorium cerebelli subdural haematoma measuring up to 3 mm. Ventricles, sulcal pattern and basal cisterns are age-appropriate. No skull fracture. Large left frontal subgaleal haematoma.
Conclusion:
Subarachnoid haemorrhage in a traumatic coup-contrecoup injury pattern.
Thin left tentorium cerebelli subdural haematoma.