<prompt> Following a sudden impact in an accident, the 34-year-old race car driver becomes unconscious and is admitted to the hospital. A CT scan is performed, and a right space-occupying lesion is noted Fig. 11-1. What is the most likely diagnosis?Corpus callosum injuryPituitary apoplexiaAcute subdural hematomaAcute epidural hematoma  <response>: Acute subdural hematomas occur most commonly when violent accelerations or deceleration injuries of the head cause tearing of the bridging veins within the subdural potential space. They generally imply a much more severe injury to the brain itself than in the case of their epidural counterpa. For this reason, they are associated with cerebral contusions in over 30 of cases. 