• Matthew A Boissaud-Cooke, Kush Bhatt, David A Hilton, and Samiul Muquit.
• Department of Neurosurgery, University Hospitals Plymouth NHS Trust, Plymouth, England; Department of Cellular & Anatomical Pathology, University Hospitals Plymouth NHS Trust, Plymouth, England. Electronic address: matthew.boissaud-cooke@nhs.net.
• World Neurosurg. 2020 May 1; 137: 239-242.

BackgroundRosai-Dorfman disease (RDD) is a rare idiopathic benign proliferative disorder of histiocytes, predominantly affecting the lymph nodes. RDD can also present in extranodal tissues and is occasionally found within the central nervous system.Case DescriptionWe report the case of a 52-year-old man presenting with a short episode of dizziness. Imaging identified a right frontal, extraaxial, dural-based lesion, suspicious for a meningioma. The patient underwent a craniotomy for tumor resection and, although not entirely typical, the pathology was consistent with RDD. No other evidence of RDD was identified.ConclusionsRDD should be considered as a differential diagnosis of dural-based lesions, more commonly meningiomas.Crown Copyright © 2020. Published by Elsevier Inc. All rights reserved.

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