Dermoid cysts are common orbital developmental tumors in childhood. They account for 3 to 9% of primary tumors. considered be congenital, but not all them diagnosed at birth. benign choristomas that arise from sequestration ectoderm along the lines embryonic fusion mesodermal processes destined bone. In most cases, lesion is close zygomatic-frontal suture leading a superotemporal subcutaneous m...