Rosai–Dorfman disease
（重定向自Sinus histiocytosis with massive lymphadenopathy）
![](/Images/godic/202502/11/Rosai-Dorfman_disease_-_very_high_mag2306.jpg")
Rosai–Dorfman disease, also known as sinus histiocytosis with massive lymphadenopathy, is a rare disorder of unknown etiology that is characterized by abundant histiocytes in the lymph nodes throughout the body.