Diagnosis of Sinus Histiocytosis with Massive Lymphadenopathy (Rosai-Dorfman Disease) by Fine Needle Aspiration Cytology in a Paediatric patient

Abstract

Rosai-Dorfman Disease (RDD) is also known as Sinus Histiocytosis of Massive Lymphadenopathy(SHML). Clinically Rosai-Dorfman Disease is characterized by massive, painless, bilateral cervicallymph node enlargement, often mimics lymphoma. Microscopically, it shows dilatation of lymphaticsinuses occupied by numerous lymphocytes and proliferation of histiocytes with abundant paleeosinophilic cytoplasm containing engulfed lymphocytes or plasma cells- emperipolesis.