{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,12]],"date-time":"2026-08-12T12:59:16Z","timestamp":1786539556541,"version":"build-2736575974"},"reference-count":43,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2019,11,13]],"date-time":"2019-11-13T00:00:00Z","timestamp":1573603200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100007311","name":"Deutsche Kinderkrebsstiftung","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100007311","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pediatric Blood &amp; Cancer"],"published-print":{"date-parts":[[2020,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Multiple endocrine neoplasia (MEN) 2B is characterized by early development of aggressive medullary thyroid carcinoma (MTC), visible physical stigmata, and associated symptoms. In most cases, de novo mutations are revealed. There are premonitory symptoms and stigmata that enable early diagnosis, before an inoperable MTC develops. The German Society for Paediatric Oncology and Haematology (GPOH)\u2014Malignant Endocrine Tumours (MET) registry maintains records of children with MTC in Germany since 1997.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Children with a diagnosis of MTC in MEN 2B recorded in the GPOH\u2010MET study were analyzed retrospectively. Stigmata and symptoms associated with MEN 2B were examined.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>From inception through 2017, 24 patients aged 0.2\u201017.3 years were included. Symptoms affecting the oral\/dental (88.0%), musculoskeletal (79.2%), and gastrointestinal (70.8%) systems were recognized most frequently. Gastrointestinal and musculoskeletal symptoms preceded symptoms of MTC. Twelve patients had short stature. Regarding the prevalence of single symptoms, neuromas of the lips and the oral cavity were mentioned most frequently. Five patients died from MTC. Patients diagnosed by tumor symptoms showed more advanced disease than those with disease detected by other means. Children diagnosed via associated stigmata and symptoms or positive family history had significantly improved overall survival (OS) compared to children diagnosed via symptoms of MTC (OS 100%\u00a0vs 53.3%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>In children with MEN 2B, oral\/dental, musculoskeletal, and gastrointestinal symptoms are most common. If children are diagnosed via associated symptoms and stigmata, OS is improved. Most of the children were diagnosed with growth disturbances; this finding requires verification and ranging in other patient cohorts.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pbc.28056","type":"journal-article","created":{"date-parts":[[2019,11,14]],"date-time":"2019-11-14T05:35:27Z","timestamp":1573709727000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Multiple endocrine neoplasia type 2B: Frequency of physical stigmata\u2014Results of the GPOH\u2010MET registry"],"prefix":"10.1002","volume":"67","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1732-1869","authenticated-orcid":false,"given":"Antje","family":"Redlich","sequence":"first","affiliation":[{"name":"Department of Paediatric Oncology and Haematology GPOH\u2010MET registry Otto\u2010von\u2010Guericke\u2010University Magdeburg  Magdeburg 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