Interesting ImagesA Rare Case of Primary Ventricular Lymphoma Presented on FDG PET/CTWang, Dong BD; Su, Min BD; Xiao, JingXing MDAuthor Information From the Department of Nuclear Medicine, Affiliated Hospital of Guangdong Medical Universiy, Xiashan District, ZhanJiang, Guangdong Province, People's Republic of China. Received for publication August 10, 2019; revision accepted October 3, 2019. Conflict of interest and sources of funding: J.X. was sponsored by Guangdong Medical Science and Technology Research Foundation Project (B2019135). None declared to all other authors. Written informed consent was obtained from the patient for publication of this case report and the accompanying images. This study was performed in accordance with the Declaration of Helsinki. Correspondence to: JingXing Xiao, MD, Department of Nuclear Medicine, Affiliated Hospital of Guangdong Medical University, No. 57 Ren-min South Road, Xiashan District, ZhanJiang, Guangdong Province, People's Republic of China. E-mail: email@example.com. Online date: December 11, 2019 Clinical Nuclear Medicine: February 2020 - Volume 45 - Issue 2 - p 156-158 doi: 10.1097/RLU.0000000000002876 Buy Metrics Abstract Primary ventricular lymphoma is a rare form of non-Hodgkin lymphoma confined to the central nervous system. A 51-year-old woman presented with a 4-month history of unsteady gait and progressive decline in memory. An outside brain MRI showed multiple space-occupying lesions in the ventricles, which suggested malignancy. Staging with FDG PET/CT demonstrated not only hypermetabolic masses in the lateral, third, and fourth ventricles but also a hypermetabolic lesion in the spinal cord. A biopsy of the right lateral ventricle tumor confirmed diffuse large B-cell lymphoma. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.