Rosai Dorfman disease definitions

Rosai–Dorfman disease

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., ==Presentation== Lymphadenopathy of the neck is the most common place of histiocyte accumulation, although accumulation outside of lym...
Found on http://en.wikipedia.org/wiki/Rosai–Dorfman_disease

Rosai-Dorfman disease

(ro´zi dorf´mәn) a rare syndrome, seen usually in children or adolescents, in which cervical lymph nodes (and sometimes other lymph nodes) are massively swollen and contain large numbers of histiocytes; extranodal disease is common, sometimes with fever, anemia, neutrophilia, elevated erythrocyte sedimentation rat...
Found on http://www.encyclo.co.uk/local/21001