Extranodal sinus histiocytosis with massive lymphadenopathy (Rosai-Dorfman disease) is a non-neoplastic condition that has rarely been reported to involve the central nervous system. This report documents a 28-year-old man with Rosai-Dorfman disease who presented with a seizure and a dural-based mass that was thought to represent a meningioma. Resection showed a lesion marked by large, S-100 protein immunoreactive histiocytic cells with intermixed benign lymphocytes and plasma cells. Emperipolesis with intracytoplasmic lymphocytes and plasma cells was present. Differential diagnostic considerations will be discussed.
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| http://dx.doi.org/10.1016/j.jocn.2014.07.011 | DOI Listing |
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