Post-traumatic acute subdural haematoma of the posterior fossa extending toward the cerebello-pontine region. Report of a case.

The case of a 73 year old lady hit by a truck is presented. The patient after a short lucid interval (2 hours) became deeply comatose. CT scan (performed in the clinical phase of minor head injury) showed a posterior fossa subdural haematoma (PFSH) extending towards the cerebello-pontine angle and the brainstem. Prompt evacuation of the haematoma led to recovery with severe disability. Mechanisms and causes of acute PFSH are discussed. As in other published cases the clinical diagnosis of a PSFH is difficult; mortality and morbidity are extremely high in spite of surgical treatment.