Figure 4: A 6‑month‑old female child presented with generalized epilepsy and the local left temporal bulged for 3 months. She was seizure free and exhibited good appearance after the arachnoid cyst was microsurgically resected and the bulging bone flap was subjected to cranioplasty. (a) Preoperative CT scan showed that the local skull thickness of the left temporal became thin and bulged. (b) Cranioplasty was performed after the arachnoid cyst was resected. Postoperative CT image indicated that the bulging location had a better appearance. (c) Three‑dimensional reconstruction CT image showed that a reduced bone flap was steadily fixed