Meningeal Castleman's disease with multifocal involvement: a case report and review of literature.

Castleman's disease is an uncommon lymphoproliferative disorder characterized by lymph node enlargement, hyperplasia of lymphoid follicles surrounded by mature lymphocytes, and capillary proliferation with endothelial hyperplasia. Although intracranial location is very uncommon, it should be considered in the differential diagnosis of meningeal tumors. We describe a new case appearing as two solid extraaxial masses simulating meningiomas. This multifocal meningeal involvement can be considered as an exceptional form of presentation of intracranial Castleman's disease.