“…[6][7][8][9] Bilateral, multiple, subconjunctival nodules as an isolated finding in Rosai-Dorfman disease has been reported in a child and bilateral epibulbar masses have been reported as a presenting feature in an adult with Rosai-Dorfman disease and systemic involvement. 8,9 Epibulbar involvement has been described in disseminated Langerhans cell disease and an isolated limbal lesion in Langerhans cell disease has been reported in adult. 1,10,17 Necrobiotic xanthogranuloma, Rosai-Dorfman disease, and Langerhans cell disease have distinctive histopathological features, which include necrobiosis in necrobiotic xanthogranuloma, emperiopolesis (histiocytes displaying phagocytosed lymphocytes), and positive staining for S-100 protein in Rosai-Dorfman disease and CD1a staining in Langerhans cell disease.…”