the diagnosis of sinus histiocytosis with massive lymphadenopathy ( rosai and dorfman , 1969 ) was retained on account of a massive hyperplasia of foamy histiocytes with pas + inclusions , lipidic storage and hemocytophagy in the sinuses and cords of the lymph nodes .
C0019625
sinus histiocytosis
C0019612
histiocytes