Hi thanks for asking in Healthcare Magic. Headache, dizziness, drowsiness or lethargy are all important warning symptoms of head injury that needs to be reported within 24 hours. MRI, CT imaging and Computed Tomography needs to be done for him to rule out the following possibilities. 1. Open or depressed skull fracture. 2. Focal neurological deficit. 3. Sub dural hematoma. Cerebral contusions affect the cortical area of brain and can cause swelling and damage to blood vessels. Either the region on the same side of injury or on the opposite side can be affected . The tip of the temporal lobe of brain (area under temple) is located above a bony ridge of skull and so the contusion is more frequent and severe here. Although your husband does not seem to have attention, emotional and memory problems related to this area he needs close monitoring. I hope this is useful to you.