The congenital dermoid cyst (CDC) is a benign, uncommonand, slow-growing lesion that is covered with normal skin. The characteristic manifestation is at birth and the sole treatment modality is total excision. The coronal suture is a rare location for the CDCs. Herein, we report a 15-month-old female who had cranial subgaleal CDC located in the left coronal suture. The cyst was completely excised after correct radiological diagnosis with computed tomography and magnetic resonance imaging. The differential diagnosis of slow-growing lesions of the cranium and scalp should be considered.

Keywords: Computed tomography, Coronal suture, Dermoid cyst, Magnetic resonance imaging, Surgery