MINIMAL INVASIVE EXCISION OF INTRAORBITAL DERMOID CYST

Orbital dermoid cyst is a rare tumor for which the pathogenesis remains unclear. It is usually located in the lateral side of the orbita, and may also rarely be observed in the intraorbital region. In this cases, aggressive treatment is necessary for the success because recurrence rate is high. But it should work delicately because of the risk of the eye damage. We report three cases with intraorbital dermoid cysts who were successfuly treated by using a minimally invasive surgery. Eye movements and visual functions were normal in all patients. No recurrences or complications appeared postoperatively. We think that it is possible to excise dermoid cysts totally using a classical surgical technique, including an anterior approach, by careful dissection under loupe magnification.