title: MRI and CT findings of isolated intracranial Rosai-Dorfman disease in a child.
abstract: Isolated intracranial Rosai-Dorfman disease (RDD) is extremely rare in pediatric patients. We present the case of a 22-month-old boy whom had isolated intracranial RDD involvement. To our knowledge, a parieto-occipital regional involvement without a dural tail sign has not been previously documented. Also, the mass contained hyperintense central T1 foci, and hypointense T2 and gradient echo foci; which are helpful in the differential diagnosis from meningioma. The magnetic resonance and computed tomography imaging findings are discussed and the follow-up course is presented in this paper.
authors.affiliation: Department of Pediatric Radiology, School of Medicine, Gazi University Ankara, Turkey drsahin80@hotmail.com.
authors.forename: Ayse G
authors.initials: AG
authors.lastname: Alimli
authors.affiliation: Department of Pediatric Radiology, School of Medicine, Gazi University Ankara, Turkey.
authors.forename: Cigdem
authors.initials: C
authors.lastname: Oztunali
authors.affiliation: Department of Pediatric Radiology, School of Medicine, Gazi University Ankara, Turkey.
authors.forename: Oznur L
authors.initials: OL
authors.lastname: Boyunaga
authors.affiliation: Department of Pathology, School of Medicine, Gazi University Ankara, Turkey.
authors.forename: Selma
authors.initials: S
authors.lastname: Pamukcuoglu
authors.affiliation: Department of Pediatric Oncology, School of Medicine, Gazi University Ankara, Turkey.
authors.forename: Arzu
authors.initials: A
authors.lastname: Okur
authors.affiliation: Department of Neurosurgery, School of Medicine, Gazi University Ankara, Turkey.
authors.forename: Alp O
authors.initials: AO
authors.lastname: Borcek
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D015618:Histiocytosis, Sinus / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed
keywords: Brain; Rosai–Dorfman disease; case study; computed tomography; intracranial mass; magnetic resonance imaging; pediatrics; sinus histiocytosis