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It mentions [<jats:sup>18<\/jats:sup>F]-FDG-PET\/MRI as the latest method to perform whole-body imaging. However, supporting data are pending. Our aim was to investigate the performance of whole-body [<jats:sup>18<\/jats:sup>F]-FDG-PET\/MRI in pediatric non-Hodgkin lymphoma patients by using a limited number of MRI sequences.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and methods<\/jats:title>\n                <jats:p>Ten pediatric patients with histologically proven non-Hodgkin lymphoma underwent whole-body [<jats:sup>18<\/jats:sup>F]-FDG-PET\/MRI at staging. The retrospective analysis included three steps: First, [<jats:sup>18<\/jats:sup>F]-FDG-PET and MR scans were evaluated separately by a nuclear medicine physician and a pediatric radiologist. Nineteen nodal and two extranodal regions as well as six organs were checked for involvement. Second, discrepant findings were reviewed together in order to reach consensus. Third, [<jats:sup>18<\/jats:sup>F]-FDG-PET\/MRI findings were correlated with the results of other clinical investigations.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Of the 190 lymph node regions evaluated, four were rated controversial. Consensus was reached by considering metabolic, functional and morphologic information combined. Concordantly, [<jats:sup>18<\/jats:sup>F]-FDG-PET and MRI detected Waldeyer\u2019s ring involvement in two patients whose Waldeyer\u2019s ring was negative on clinical assessment. In four patients MRI showed pleural effusion. However, in only two of them an increased glucose metabolism as a reliable sign of pleural involvement was detectable. In six patients [<jats:sup>18<\/jats:sup>F]-FDG-PET and MRI detected skeletal lesions although bone marrow biopsy was positive in only one of them.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Despite the small number of cases evaluated, whole-body [<jats:sup>18<\/jats:sup>F]-FDG-PET turned out to be a valuable tool for staging of pediatric non-Hodgkin lymphoma.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s13550-021-00804-8","type":"journal-article","created":{"date-parts":[[2021,7,3]],"date-time":"2021-07-03T13:02:29Z","timestamp":1625317349000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Whole-body [18F]-FDG-PET\/MRI for staging of pediatric non-Hodgkin lymphoma: first results from a single-center evaluation"],"prefix":"10.1186","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3396-4880","authenticated-orcid":false,"given":"L.","family":"Kurch","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Kluge","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"O.","family":"Sabri","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L.","family":"Fischer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Wendt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Graf Einsiedel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Starke","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.-S.","family":"K\u00fchl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Christiansen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F. 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The Ethics Committee is registered as Institutional Review Board (IBF) at the Office for Human Research Protections (OHRP). The registration number is as follows: IORG0001320, IRB00001750.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Written informed consent was obtained from all patients and\/or their legal guardians for scientific evaluation of their data before inclusion into this retrospective analysis.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"None of the authors has any competing interest.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"62"}}