[Benign pseudo-tumoral lymphoid hyperplasia with massive Destombes-Rosai-Dorfman histiocytosis].

The authors report one case of sinus histiocytosis with massive lymphadenopathy which occurred in a 70 years old woman. They remind the main features of this pseudolymphomatous benign disorder with three key microscopic findings : massive sinus histiocytosis, lymphophagocytosis, proliferation of mature plasma cells. There is no effective therapy and nothing definite about the etiology.