title: Meningeal nodules with features of extranodal sinus histiocytosis with massive lymphadenopathy.
abstract: We present an unusual case of multiple intracranial meningeal nodules in a 30-year-old man. Histologically, the nodules consisted predominantly of plasma cells, histiocytes, and lymphoid cells with Russell bodies and emperipolesis. Emperipolesis may be a clue to understanding the pathogenesis of the process that has features consistent with so-called sinus histiocytosis with massive lymphadenopathy in the extranodal location.
authors.affiliation: Department of Pathology, Mount Sinai School of Medicine, City University of New York, New York.
authors.forename: S K
authors.initials: SK
authors.lastname: Song
authors.forename: I S
authors.initials: IS
authors.lastname: Schwartz
authors.forename: J A
authors.initials: JA
authors.lastname: Strauchen
authors.forename: Y P
authors.initials: YP
authors.lastname: Huang
authors.forename: V
authors.initials: V
authors.lastname: Sachdev
authors.forename: D R
authors.initials: DR
authors.lastname: Daftary
authors.forename: C J
authors.initials: CJ
authors.lastname: Vas
mesh_terms: D000328:Adult; D006801:Humans; D008198:Lymph Nodes; D008206:Lymphatic Diseases / Q000473:pathology*; D008297:Male; D008577:Meningeal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D008579:Meningioma / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed