Interesting ImagesAbdominal Metastases of Intracranial Germ Cell Tumor Via Ventriculoperitoneal Shunt Detected by 18F-FDG PET/CTYang, Qiao MD; Zhu, Wenjia MD; Huo, Li MD, PhDAuthor Information From the Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing, China. Received for publication June 1, 2020; revision accepted June 23, 2020. Conflicts of interest and sources of funding: none declared. Correspondence to: Li Huo, MD, PhD, Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, #1 Shuaifuyuan, Dongcheng District, Beijing 100730, China. E-mail: firstname.lastname@example.org. Clinical Nuclear Medicine: October 2020 - Volume 45 - Issue 10 - p 836-837 doi: 10.1097/RLU.0000000000003235 Buy Metrics Abstract Extraneural metastases of primary brain tumors are rare. Here, we provided a case of a 19-year-old man presenting with 2 intra-abdominal masses, who had a history of intracranial germ cell tumors and a ventriculoperitoneal shunt implanted in order to alleviate obstructive hydrocephalus. The intra-abdominal lesions showed intense FDG uptake and were confirmed to be germ cell tumors by postoperative histopathology. 18F-FDG PET scan could be useful in monitoring metastases of intracranial germ cell tumors via ventriculoperitoneal shunt. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.