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Updated: May 17, 2025
Whole-body PET/MRI of Pediatric Patients: The Details That Matter
Published on: December 19, 2017
Unsuspected Spondylolysis on FDG PET/CT in a Pediatric Patient With Osteosarcoma
Pensiree Attaseth1,2, Hongming Zhuang2
1Department of Radiology, Bumrungrad International Hospital, Bangkok, Thailand.
Abstract:
Lumbar spondylolysis can be asymptomatic but is a common cause of low back pain in adolescent athletes. We report a rare case of focal increased FDG uptake at the left pars interarticularis of L5 vertebra, along with an associated transverse fracture line on 18F-FDG PET/CT, in a 15-year-old boy with newly diagnosed osteosarcoma. This led to the incidental diagnosis of L5 spondylolysis. Attention to CT findings and history-taking is prerequisite to avoid misinterpretation of the FDG PET/CT in this clinical setting.
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