J Korean Soc Radiol.
2022 May;83(3):719-723. 10.3348/jksr.2021.0121.
Isolated Intracranial Rosai–Dorfman Disease Mimicking Meningioma: A Case Report
- Affiliations
-
- 1Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
- 2Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
- KMID: 2530062
- DOI: http://doi.org/10.3348/jksr.2021.0121
Abstract
- Rosai–Dorfman Disease (RDD) is a rare lymphoproliferative disease, and the occurrence of isolated intracranial RDD is extremely rare. Most cases of intracranial RDDs present as dural masses showing homogenous enhancement on MRI, which makes it difficult to differentiate these masses from meningiomas before surgery unless massive cervical lymphadenopathy is observed. We herein report a rare case of isolated intracranial RDD in a 65-year-old male. Brain MRI revealed a well-defined enhancing mass-like lesion involving the right frontal convexity and subtle diffusion restriction. However, only a subtle blush was observed on the preoperative cerebral angiogram. Although instances of isolated intracranial RDD are rare, it should be considered as a potential differential diagnosis when a dural mass with hypovascularity is visualized on the cerebral angiogram.
