A case of traumatic hematoma in the basal ganglia that showed deterioration after arrival at the hospital.

A case of traumatic hematoma in the basal ganglia that showed deterioration after arrival at the hospital was reported. A 65-year-old man crashed into the wall while riding a motorcycle. His Glasgow coma scale was E3V4M6 and showed retrograde amnesia and slight right motor weakness. Because head CT in the secondary trauma survey showed subarachnoid hemorrhage in the right Sylvian fissure and multiple gliding contusions in the left frontal and parietal lobe, he was entered into the intensive care unit for diagnosis of diffuse brain injury. He showed complete muscle weakness of left upper and lower limbs 5 h after the accident. Head CT newly showed hematoma, 2 cm in diameter, in the right basal ganglia. The patient vomited following the CT scan, and so his consciousness suddenly deteriorated into a stupor. We performed head CT again. The hematoma had enlarged to 5 cm at the same lesion and partially expanded into midbrain. The patient died on the 13th day of trauma. Based on retrospective interpretation, we conclude that clinical examinations, follow-up CT scans and blood examinations should be performed frequently as part of ICU management for all TBI patients in the early phase after trauma.