Intraoperative photographs (a–d). Photograph of the skin immediately above the skull mass (a) showing the cutaneous scar (arrowheads) from the past injury. The skull surface just below the skin scar was smooth but swollen (b). Photograph obtained after piercing the cyst (c) demonstrating bloody cyst fluid and the inner surface of the cyst wall with no obvious tumorous change. Intact dura mater was observed after total removal of the skull mass (d).
