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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which of the following is the most common clinical manifestation of Rosai Dorfman disease?
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The correct answer is  Rosai Dorfman disease: Massive cervical lymphadenopathy, usually bilateral and painless, is the most common manifestation. It is generally a benign disorder in spite of its propensity to form large masses and to disseminate to both nodal and extranodal sites.