Subdural and intracystic haematomas in an arachnoid cyst secondary to a boxing injury Luis A. Robles, et al. - The sport of boxing is a well known cause of brain injury. These injuries can be acute, such as intracranial haematoma, or chronic, such as dementia pugilistica. Acute subdural haematoma (SH) is the most common acute brain injury in boxing, and is the leading cause of boxing fatalities [more...]