Leukemia in Cardio-facio-cutaneous (CFC) syndrome: A patient with a germline mutation in BRAF proto-oncogene

Yoshio Makita, Yoko Narumi, Makoto Yoshida, Tetsuya Niihori, Shigeo Kure, Kenji Fujieda, Yoichi Matsubara, Yoko Aoki

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45 Citations (Scopus)


Cardio-facio-cutaneous (CFC) syndrome is a multiple congenital anomaly/mental retardation syndrome characterized by a distinctive facial appearance, ectodermal abnormalities, and heart defects. Clinically, it overlaps with both Noonan syndrome and Costello syndrome, which are caused by mutations in 2 genes that encode molecules of the RAS/MAPK (mitogen activated protein kinase) pathway (PTPN11 and HRAS, respectively). Recently, mutations in KRAS, BRAF, and MEK1/2 have been identified in patients with CFC syndrome. Somatic mutations in KRAS and BRAF have been identified in various tumors. In contrast, the association with malignancy has not been noticed in CFC syndrome. Here we report a 9-year-old boy diagnosed with CFC syndrome and acute lymphoblastic leukemia. Sequencing analysis of the entire coding region of KRAS and BRAF showed a de novo germline BRAF E501G (1502A→G) mutation. Molecular diagnosis and careful observations should be considered in children with CFC syndrome because they have germline mutations in proto-oncogenes and might develop malignancy.

Original languageEnglish
Pages (from-to)287-290
Number of pages4
JournalJournal of Pediatric Hematology/Oncology
Issue number5
Publication statusPublished - 2007 May


  • BRAF
  • Cardio-facio-cutaneous syndrome
  • KRAS
  • Leukemia


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