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Biallelic inactivation of SDHA results in comorbidity of pediatric recurrent neuroblastoma and gastric stromal tumor

Rapid Communications

Biallelic inactivation of SDHA results in comorbidity of pediatric recurrent neuroblastoma and gastric stromal tumor

Yang Shen
Zhang Shixuan
Zhao Wen
Fu Libing
Zhang Li
Chui Chan Hon
Guo Ruolan
Su Yan
Sun Dayan
Wang Huanmin
Genes & Diseases第11卷, 第6期纸质出版 2024-11-01在线发表 2023-12-15
3100

Neuroblastoma (NB) is a common pediatric extracranial solid tumor that exhibits varied characteristics, clinical features, and prognosis.1 Totally 1%–2% of cases show familial history with genetic links like ALK, PHOX2B mutations, and 1p36 or 11q14-23 locus deletions. Gastrointestinal stromal tumors (GISTs) are rare mesenchymal neoplasms of the gastrointestinal tract. Approximately 85% of pediatric patients with GIST lack oncogenic mutations in cKIT or platelet-derived growth factor receptor alpha (PDGFRA), and a majority of these are characterized by molecular alterations in the succinate dehydrogenase (SDH) family of genes.2,3 Genetic changes, germline mutations, and variant-phenotype links in NB and GIST remain largely unexplored. Here, we reported a case of biallelic SDHA variant and copy number deletion causing pediatric recurrent NB with GIST to enhance the understanding of this rare clinical scenario.

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