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Extranodal Rosai-Dorfman Disease- A Review Of Diagnostic Testing And Management., Imad Ud Deen, Abhinandan Chittal, Nabil Badro, Robert Jones, Christopher Haas

Journal of Community Hospital Internal Medicine Perspectives

Rosai-Dorfman disease (RDD) is a rare, benign histiocytic proliferative disorder primarily occurring in the lymph nodes. Extranodal disease can occur in skin and soft tissue, central nervous system, gastrointestinal tract, and breast. Here we present a case of a 55-year-old female with a history of hypertension, hyperlipidemia, and diabetes mellitus who presented with a fixed solid mass localized to the right medial thigh. Excision revealed S100 and CD 68 positive scattered lymphoid aggregates and emperipolesis, hallmark molecular and cytopathologic features of RDD. RDD is a nonmalignant, classically sporadic histiocytosis. Clinical outcome in terms of mortality seems to be favorable in …