Abstract #1184

MR and Proton MR Spectroscopy Findings of a Pediatric Case with Solitary Intracranial Rosai-Dorfman Disease in the Posterior Fossa

Sehnaz Tezcan¹, Muhtesem Agildere¹, Taner Sezer², Ozge Ozturk¹, and Aydın Sav³

¹Radiology, Baskent University Hospital, Ankara, Turkey, ²Pediatrics, Division of Neurology, Baskent University Hospital, Ankara, Turkey, ³Pathology, Acıbadem Maslak Hospital, Istanbul, Turkey

Rosai-Dorfman disease (RDD) is a histioproliferative disorder, rarely affects central nervous system. A 5-year old boy presented with ptosis, diplopia. MR revealed enhancing mass in the cerebellar pedincle and pons. MR Spectroscopy (MRS) of the lesion showed increased Choline/N-acetyl aspartate ratio and lactate peak.. Histopathology was compatible with RDD. Although intracranial RDD generally presents as dural based lesions and supratentorial in location, intraparencymal lesions may be seen.. In this case report a rare form of RDD, posterior fossa parenchyma involvement presented with particular interest to brain MR, MRS and diffusion findings.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.