期刊
JOURNAL OF PEDIATRICS
卷 259, 期 -, 页码 -出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.jpeds.2023.113451
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By collecting information on pediatric patients with cancer and congenital abnormalities, this study found associations between pediatric malignancies and congenital abnormalities. Central nervous system tumors, leukemia, and renal tumors were the most represented cancers. Most congenital abnormalities were not related to known genetic disorders, and intellectual disability was the most common anomaly. Embryonic tumors were associated with consistent abnormalities.
Objective To assess the associations between congenital abnormalities and pediatric malignancies and evaluate the potential underlying molecular basis by collecting information on pediatric patients with cancer and congenital abnormalities. Study design Tumeur Et Developpement is a national, prospective, and retrospective multicenter study recording data of children with cancer and congenital abnormalities. When feasible, blood and tumoral samples are collected for virtual biobanking. Results From June 2013 to December 2019, 679 associations between pediatric cancers and congenital abnormalities were recorded. The most represented cancers were central nervous system tumors (n = 139; 20%), leukemia and myelodysplastic syndromes (n = 123; 18.1%), and renal tumors (n = 101; 15%). Congenital abnormalities were not related to any known genetic disorder in 66.5% of cases. In this group, the most common anomaly was intellectual disability (22.3%), followed by musculoskeletal (14.2%) and genitourinary anomalies (12.4%). Intellectual disability was mostly associated with hematologic malignancies. Embryonic tumors (neuroblastoma, Wilms tumor, and rhabdomyosarcoma) were associated with consistent abnormalities, sometimes with a close anatomical neighborhood between the abnormality and the neoplasm. Conclusions In the first Tumeur Et Developpement analysis, 3 major themes have been identified: (1) germline mutations with or without known cancer predisposition, (2) postzygotic events responsible for genomic mosaicism, (3) coincidental associations. New pathways involved in cancer development need to be investigated to improve our understanding of childhood cancers.
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