Rosai Dorfman disease--a clinico-pathological presentation.

Rosai Dorfman disease (RDD) or sinus histiocytosis with massive lymphadenopathy (SHML) is a rare disorder that typically manifests as lymphadenopathy and systemic symptoms. The authors report a 45 year old lady who presented with nasal mass and generalised lymphadenopathy. Histopathological examination demonstrated lymphophagocytosis (emperipolesis) consistent with a diagnosis of RDD. The clinical and histologic aspects of the disease are discussed as a rare cause of generalised lymphadenopathy.