{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T08:17:29Z","timestamp":1780647449539,"version":"3.54.1"},"reference-count":57,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2024,8,29]],"date-time":"2024-08-29T00:00:00Z","timestamp":1724889600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Genes"],"abstract":"<jats:p>Importance: The etiology of pediatric cancers is often unclear; however, advancements in genetics have identified significant roles for genetic disorders in their development. Over time, the number of cancer predisposition syndromes (CPSs) and awareness of them have increased, providing the possibility of cancer prevention and early detection. Purpose: In this study, we present data concerning the number and type of oncological cases and their correlation with CPS occurrence in a cohort of Central and Eastern European pediatric patients. Materials: The data were collected between 2000 and 2019 at the Karol Jonscher Clinical Hospital of Poznan University of Medical Sciences, resulting in a cohort of 2190 cases in total, of which 193 children (8.81%) were confirmed to have a CPS. Results: CPSs occurred most frequently in infancy (22.90% of all children suffering from any diagnosed cancer during the first year of life; p &lt; 0.0001), accounting for more than one-quarter of all CPS cases in our cohort. CPSs were least likely to be observed in patients aged 14 and 15 years (2.17% and 2.44% of children diagnosed with any of the listed cancers at the exact age, respectively; p &lt; 0.05). Among CPSs, the most common were neurofibromatosis type I (NF1), Li\u2013Fraumeni syndrome (LFS), and Down syndrome (DS). Conclusions: To conclude, it is important to emphasize the need for personalized treatment for each patient affected by both CPSs and subsequent cancer in order to reduce the toxicity of therapy and improve quality of life by reducing the risk of side effects.<\/jats:p>","DOI":"10.3390\/genes15091141","type":"journal-article","created":{"date-parts":[[2024,8,29]],"date-time":"2024-08-29T08:01:47Z","timestamp":1724918507000},"page":"1141","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The Prevalence of Cancer Predisposition Syndromes (CPSs) in Children with a Neoplasm: A Cohort Study in a Central and Eastern European Population"],"prefix":"10.3390","volume":"15","author":[{"given":"Gabriela","family":"Telman-Ko\u0142odziejczyk","sequence":"first","affiliation":[{"name":"Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Szpitalna 27\/33, 60-572 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8275-3126","authenticated-orcid":false,"given":"Ewa","family":"Strauss","sequence":"additional","affiliation":[{"name":"Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska Street 32, 60-479 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4714-6501","authenticated-orcid":false,"given":"Patrycja","family":"Sosnowska-Sienkiewicz","sequence":"additional","affiliation":[{"name":"Department of Pediatric Surgery, Traumatology and Urology, Poznan University of Medical Sciences, Szpitalna Street 27\/33, 60-572 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2332-2750","authenticated-orcid":false,"given":"Danuta","family":"Januszkiewicz-Lewandowska","sequence":"additional","affiliation":[{"name":"Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Szpitalna 27\/33, 60-572 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"483","DOI":"10.1016\/S1470-2045(18)30909-4","article-title":"Estimating the Total Incidence of Global Childhood Cancer: A Simulation-Based Analysis","volume":"20","author":"Ward","year":"2019","journal-title":"Lancet Oncol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"820","DOI":"10.1073\/pnas.68.4.820","article-title":"Mutation and Cancer: Statistical Study of Retinoblastoma","volume":"68","author":"Knudson","year":"1971","journal-title":"Proc. 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