| Summary: | Rosai–Dorfman disease is a rare non-Langerhans cell histiocytosis disorder, also known as sinus histiocytosis, with massive lymphadenopathy. Rosai–Dorfman disease is classified into nodal and extranodal diseases. Ocular involvement is one of the common extranodal manifestations; however, uveitis manifestation is infrequent. We reported an interesting Rosai–Dorfman disease patient who presented with chronic bilateral granulomatous anterior uveitis with disc hyperemia and cystoid macular edema. She was a 60-year-old Thai female who had abnormal skin nodules on her back after multiple recurrent chronic anterior uveitis. The diagnosis has been made based on a constellation of the patient’s information, physical examination, and histopathological results. We successfully treated the patient with topical steroids, posterior subtenon triamcinolone 20-mg injection, and methotrexate.
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