Dermoid cyst is the most common noninflammatory space occupying orbital mass in children [11, 45]. It usually appears in the first decade of life as a fairly firm, fixed, subcutaneous mass at the superotemporal orbital rim near the zygomaticofrontal suture (Fig. 8.23). Occasionally, a dermoid cyst may occur deeper in the orbit unattached to bone. Although it sometimes stationary, it does have a tendency to slowly enlarge. It can occasionally rupture, inciting an intense inflammatory reaction. Management is either serial observation or surgical removal of the mass.
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