Update on Cancer Predisposition Syndromes and Surveillance Guidelines for Childhood Brain Tumors

Area of Science:

• Pediatric oncology
• Cancer genetics
• Neuro-oncology

Background:

• Central nervous system (CNS) tumors are the second most common childhood neoplasms.
• Germline predisposition syndromes are increasingly recognized in pediatric brain tumor patients.
• Many identified syndromes present with distinct phenotypes or family cancer history.

Purpose of the Study:

• To highlight advances in understanding CNS tumor germline predisposition.
• To summarize surveillance recommendations for pediatric brain tumor predisposition syndromes.
• To inform clinical management based on genetic findings.

Main Methods:

• Review of established and emerging pediatric brain tumor predisposition syndromes.
• Molecular characterization of CNS tumors and identification of germline genetic changes.
• Synthesis of current knowledge by the AACR Cancer Predisposition Working Group.

Main Results:

• Approximately 50% of pediatric brain tumor patients may have an undiagnosed germline predisposition.
• Specific genetic alterations in CNS tumors are increasingly linked to heritable syndromes.
• Novel predisposition syndromes continue to be identified.

Conclusions:

• Identification of germline predisposition is crucial for early diagnosis and surveillance.
• Genetic findings impact cancer management strategies in pediatric patients.
• Established and emerging syndromes require updated surveillance recommendations.