title: Rosai-Dorfman disease of the central nervous system: report of 6 cases and review of the literature.
abstract: Rosai-Dorfman disease (RDD), also known as sinus histiocytosis with massive lymphadenopathy (SHML), is an uncommon benign idiopathic lymphoproliferative disorder. The histologic hallmark of RDD is the finding of emperipolesis displayed by lesional histiocytes. While RDD most commonly affects lymph nodes, extranodal involvement of multiple organs has been reported, including the central nervous system (CNS). However, CNS involvement in RDD is rare and is not well characterized. As a result, therapeutic approaches to CNS involvement in RDD are not well established. Herein we report 6 cases of RDD with isolated CNS involvement and review the literature on RDD with CNS involvement. One of the presented cases exhibited intramedullary involvement of the spinal cord--a very rare form of RDD with CNS involvement.
authors.affiliation: From the Department of Medicine (JDS-S, ACS-L, ISL), Department of Pathology (JRC, JV-V), and Department of Radiology (MJB), University of Miami, Miami, Florida, Division of Hematology-Oncology (ISL), Department of Medicine, and Department of Molecular and Cellular Pharmacology (ISL), University of Miami, Sylvester Comprehensive Cancer Center, Miami, Florida, and Department of Neurology (SR, AL), Hebrew University-Hadassah Medical Center, Jerusalem, Israel.
authors.forename: Jose D
authors.initials: JD
authors.lastname: Sandoval-Sus
authors.forename: Ana C
authors.initials: AC
authors.lastname: Sandoval-Leon
authors.forename: Jennifer R
authors.initials: JR
authors.lastname: Chapman
authors.forename: Jose
authors.initials: J
authors.lastname: Velazquez-Vega
authors.forename: Maria J
authors.initials: MJ
authors.lastname: Borja
authors.forename: Shai
authors.initials: S
authors.lastname: Rosenberg
authors.forename: Alexander
authors.initials: A
authors.lastname: Lossos
authors.forename: Izidore S
authors.initials: IS
authors.lastname: Lossos
mesh_terms: D000328:Adult; D002493:Central Nervous System Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D015618:Histiocytosis, Sinus / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged