• Zhengxiang Luo, Yansong Zhang, Penglai Zhao, Hucheng Lu, Kun Yang, Yuhai Zhang, and Yanjun Zeng.
• Department of Neurosurgery, NanJing Brain Hospital affiliated with NanJing Medical University, NanJing, China. Electronic address: 342766863@qq.com.
• World Neurosurg. 2017 Jan 1; 97: 58-63.

ObjectiveThis study aimed to summarize the clinical characteristics of Rosai-Dorfman disease primarily involving the central nervous system and to explore diagnosis and treatment.MethodsWe analyzed the clinical, imaging, and pathologic characteristics; treatment; and prognosis in 3 cases of Rosai-Dorfman disease primarily involving the central nervous system. We also performed a literature review.ResultsThe largest of multiple intracranial lesions was totally resected, and steroid administration and radiotherapy were performed in phases for the remaining lesions. During the 1-year follow-up period, the excised lesion did not recur, and no obvious variations were observed in the other lesions. Subtotal resection was performed of the largest of another group of multiple intracranial lesions, and the residual did not show any obvious variations during the 1-year follow-up period. The isolated lesion was totally resected and did not recur during a 2-year follow-up period.ConclusionsRosai-Dorfman disease with multiple lesions primarily involving the central nervous system is rare. Imaging characteristics are similar to meningiomas, and the pathological features include lymphocytes and plasma cells reaching tissue cells with large volume and abundant cytoplasm. Surgery is the preferred treatment, as the effects of steroid administration and radiotherapy are not apparent.Copyright © 2016 Elsevier Inc. All rights reserved.

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