PET/MR of pediatric bone tumors: what the radiologist needs to know.

Padwal, Jennifer; Baratto, Lucia; Chakraborty, Amit; Hawk, Kristina; Spunt, Sheri; Avedian, Raffi; Daldrup-Link, Heike E · Skeletal Radiol · 2023

review · Level V

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Abstract

Integrated 2-deoxy-2-[fluorine-18]fluoro-D-glucose (<sup>18</sup>F-FDG) positron emission tomography (PET)/magnetic resonance (MR) imaging can provide "one stop" local tumor and whole-body staging in one session, thereby streamlining imaging evaluations and avoiding duplicate anesthesia in young children. <sup>18</sup>F-FDG PET/MR scans have the benefit of lower radiation, superior soft tissue contrast, and increased patient convenience compared to <sup>18</sup>F-FDG PET/computerized tomography scans. This article reviews the <sup>18</sup>F-FDG PET/MR imaging technique, reporting requirements, and imaging characteristics of the most common pediatric bone tumors, including osteosarcoma, Ewing sarcoma, primary bone lymphoma, bone and bone marrow metastases, and Langerhans cell histiocytosis.

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