56 PRACTICAL DERMATOLOGY AUGUST 2014 R osai-Dorfman disease (RDD), or sinus histiocytosis with massive lymphadenopathy (SHML) is a benign lympho-histiocytic proliferative disorder initially described with bilateral painless lymphadenopathy (90 percent), fever, leukocytosis, elevated ESR, anemia, and polyclonal hypergammaglobulinemia (90 percent).1 RDD presents with cervical adenopathy most comm...
