Acute Traumatic Epidural Hematoma with Significant Midline Shift Following a Helmetless Motorcycle Accident: A Case Report on Emergent Craniotomy and Favorable Neurological Recovery in a Young Adult

Epidural Hematoma Traumatic Brain Injury Craniotomy Motorcycle Accident Midline Shift Glasgow Coma Scale

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October 15, 2026

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Traumatic epidural hematoma (EDH) is a neurosurgical emergency commonly observed in young men following high-energy head trauma, particularly motorcycle-related traffic accidents. Although EDH accounts for approximately 8% of traumatic brain injuries, timely surgical evacuation is associated with favorable neurological outcomes, whereas delayed diagnosis or treatment may result in rapid neurological deterioration and death. An 18-year-old male patient presented to the emergency department following a motorcycle crash without a helmet, with loss of consciousness, vomiting, and a laceration in the left supraorbital region. On admission, his Glasgow Coma Scale (GCS) score was 6 (E1V1M4), accompanied by anisocoria (pupillary diameters of 2 mm and 4 mm) and sluggish pupillary light responses. Noncontrast computed tomography (CT) of the head revealed a well-defined, biconvex hyperdense extra-axial collection in the left frontotemporoparietal region, associated with a 1.6-cm rightward midline shift, consistent with acute EDH. The patient underwent emergency craniotomy and hematoma evacuation. Postoperatively, his neurological status progressively improved, with the GCS score increasing from 6T to 15 within four days. He was subsequently extubated, transferred from the intensive care unit, and discharged home with a favorable neurological outcome. At outpatient follow-up, the surgical wound had healed well. This case illustrated the characteristic clinical and radiological features of acute traumatic EDH and emphasized the importance of rapid assessment, early neuroimaging, and timely surgical evacuation in preventing secondary brain injury. Despite the patient's initially low GCS score and substantial midline shift, favorable neurological recovery was achieved following emergency surgical intervention, consistent with evidence supporting early hematoma evacuation as a critical modifiable factor associated with improved survival and functional outcomes in patients with traumatic EDH.