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Embryonal rhabdomyosarcoma in a patient with a germline CBL pathogenic variant.


ABSTRACT: Germline pathogenic variants in CBL are associated with an autosomal dominant RASopathy and an increased risk for malignancies, particularly juvenile myelomonocytic leukemia. Herein, we describe a patient with clinical features of a Noonan-spectrum disorder who developed embryonal rhabdomyosarcoma of the bladder at age two years. Tumor analysis using the OncoKids® cancer panel revealed a CBL pathogenic variant: NM_005188.3:c.1100A>C (p.Gln367Pro). Sanger sequencing of peripheral blood DNA confirmed a de novo heterozygous germline variant. This is the first report of embryonal rhabdomyosarcoma in association with a germline CBL pathogenic variant, further broadening the CBL cancer predisposition spectrum.

SUBMITTER: Ji J 

PROVIDER: S-EPMC7528629 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Embryonal rhabdomyosarcoma in a patient with a germline CBL pathogenic variant.

Ji Jianling J   Navid Fariba F   Hiemenz Mathew C MC   Kaneko Maki M   Zhou Shengmei S   Saitta Sulagna C SC   Biegel Jaclyn A JA  

Cancer genetics 20181230


Germline pathogenic variants in CBL are associated with an autosomal dominant RASopathy and an increased risk for malignancies, particularly juvenile myelomonocytic leukemia. Herein, we describe a patient with clinical features of a Noonan-spectrum disorder who developed embryonal rhabdomyosarcoma of the bladder at age two years. Tumor analysis using the OncoKids<sup>®</sup> cancer panel revealed a CBL pathogenic variant: NM_005188.3:c.1100A>C (p.Gln367Pro). Sanger sequencing of peripheral blood  ...[more]

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