Radiologic-Pathologic Correlations
A report of intracranial Rosai-Dorfman disease with literature review

https://doi.org/10.1053/adpa.2001.23027Get rights and content

Abstract

Rosai-Dorfman disease (sinus histiocytosis with massive lymphadenopathy), is a rare benign histiocytic proliferative disorder. Over 650 cases have been reported since 1969. To the best of our knowledge, there have been only 31 cases with central nervous system involvement reported in the literature. Intracranial disease usually presents clinically and radiologically as a “meningioma”. It can be misdiagnosed as a nonspecific inflammatory process because of the atypical histologic features of Rosai-Dorfman disease occurring in a non-nodal location. Familiarity with such atypical histologic features and appropriate use of immunohistochemical stains is required for a definitive diagnosis of central nervous system Rosai-Dorfman disease. We report such an intracranial lesion with other extranodal sites of involvement with a 5-year follow up and a review of previously reported cases. Ann Diagn Pathol 5:96-102, 2001.

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    The immunohistochemical findings will be immunoreactive for S-100 protein, CD68 antigen, and vimentin but negative for CD1a, CD15, and CD30, without cellular atypia and mitosis. These findings make it difficult to differentiate from meningioma, Langerhans cell histiocytosis or histiocytosis X, lymphoproliferative disorders, plasma cell granulomas, Hodgkin's lymphoma, and infectious processes in the CNS.6,8,9,19,27,29,32 Although some hypotheses have been proposed, the etiology of RDD remains unclear.

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    T1-weighted MRI showed that the intracranial RDD was usually an isointense or hyperintense mass with distinct borders, and had avid homogenous contrast enhancement. On T2-weighted scanning, the lesions usually presented as isointense [19]. Moreover, an exceptional case was also reported where the lesion could be isointense on T1-weighted but hyperintense on T2-weighted MRI with minimal contrast enhancement [8].

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