Intraorbital dermoid cyst. A case report

Orbital dermoid cyst represents 3 to 4 % of all primary orbital tumours. Th e intraorbital location is relatively rare. We report the case of a 9 year- old male child with an orbital dermoid cyst, who presented with progressive right proptosis, which had developed 3 months earlier. Visual acuity, ocular motility and funduscopic examination were normal. Imaging aspects (ultrasonography and computed tomography) have revealed an extraconical orbital, hypodense, well limited tumor, without bone destructi on and no enhancement located at the postieroexternal side of the orbit. The tumors was extirpated surgically via a superior approach. Histopatholog y confirmed the diagnosis of dermoid cyst.