Sinus histiocytosis is an increase in benign histiocytes in lymph nodes, often associated with infections. Treatment depends on the underlying cause, while sinus histiocytosis with massive lymphadenopathy is a rare disease with no known cure. Sinus histiocytosis, not to be confused with “sinus histiocytosis with massive lymphadenopathy,” is a medical term that describes an increase […]