Interesting ImagesThe Use of FDG PET Parametric Imaging in the Diagnosis of Olivopontocerebellar AtrophyHarfouch, Nassier MD; Finkelstein, Mark MD; Sathe, Swati MD; Raden, Mark MD; Brenner, Arnold I. DO, MMMAuthor Information From the Staten Island University Hospital, Northwell Health, Staten Island, NY. Received for publication January 21, 2020; revision accepted May 12, 2020. Conflicts of interest and sources of funding: none declared. Correspondence to: Nassier Harfouch, MD, Staten Island University Hospital, Northwell Health, 475 Seaview Ave, Staten Island, NY 10305. E-mail: [email protected]. Clinical Nuclear Medicine: September 2020 - Volume 45 - Issue 9 - p e419-e421 doi: 10.1097/RLU.0000000000003180 Buy Metrics Abstract Olivopontocerebellar atrophy is a rare neurodegenerative syndrome associated with 2 distinct disorders: multiple system atrophy and spinocerebellar ataxia. We present a case involving a 66-year-old man with adult-onset progressing cerebellar signs reflective of a cerebellar syndrome with no significant family history and unremarkable genetic testing for spinocerebellar ataxia. This case was found to be most consistent with sporadic olivopontocerebellar atrophy, which falls under the multiple system atrophy category. This diagnosis can be made using 18F-FDG PET/CT scanning and with MRI in some cases. However, in this case, relatively new PET/CT quantification and parametric imaging software was used for analysis, CortexID Suite. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.