Sinus Histiocytosis with Massive Lymphadenopathy (Rosai-Dorfman Disease): Imaging Manifestations in the Head and Neck

OBJECTIVE. We present the largest case series in the English-language imaging literature, emphasizing the variety of presentations of Rosai-Dorfman disease in the head and neck.CONCLUSION. Rosai-Dorfman disease is a rare disorder with multiple sites of involvement in the head and neck.