Fig. 1
a Preoperative computed tomography (CT) scan revealed a right epidural hematoma (black arrows) and frontal lobe contusion (white arrow) with significant right-to-left midline shift. b A descending transtentorial herniation and total obliteration of all basal cerebrospinal fluid spaces by the displacement of brain can be seen. Note the left-mesencephalon notching against the tentorial edge (black arrow). c, d Postoperative CT scans. e, f The patient’s right hemibody strength was 2/5 (red arrows), indicating a right-sided hemiparesis