Eosinophilic granuloma of orbit.

Three cases of orbital eosinophilic granuloma are reported. In all 3 the diagnosis was established histologically. In the follow-up period, ranging between 5 and 20 years, the disease has taken a benign course; incomplete surgical removal in 2 of the patients and radiation of the lesion in one have been equally effective in promoting healing. The first mode of therapy may be preferable in the region of orbit in order to avoid damage to the globe or optic nerve.