This case involves a fifty-year-old male who was involved in a motor vehicle accident and sustained severe whiplash associated with a lucid interval of consciousness. Three days after the accident, the patient presented to the ER complaining of headaches and mild nausea. The ER physician’s initial impression was a concussion and mild neck strain, and the plan was to have the patient take Tylenol and return to his PCP in three weeks if no improvement was seen. Approximately two weeks later, the patient began to display signs and symptoms consistent with a subdural hematoma. A CT scan showed a severe midline shift and mass effect in the cerebral ventricles. The patient underwent an immediate craniotomy for decompression but continues to have residual motor and sensory deficits.