Which genetic syndrome is most commonly associated with gliomas of the central nervous system, including optic pathway gliomas?

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Multiple Choice

Which genetic syndrome is most commonly associated with gliomas of the central nervous system, including optic pathway gliomas?

Optic pathway gliomas are a classic CNS tumor seen in neurofibromatosis type 1 (NF1). The NF1 gene encodes neurofibromin, a negative regulator of Ras signaling; when NF1 function is lost, Ras-driven glial cell proliferation increases, predisposing to gliomas, especially along the optic pathway in children. This makes NF1 the genetic syndrome most strongly linked with CNS gliomas, including optic pathway involvement. By comparison, Prader-Willi is an imprinting disorder with endocrine and behavioral features, tuberous sclerosis is more associated with subependymal giant cell astrocytomas and cortical tubers rather than typical optic pathway gliomas, and Sturge-Weber involves vascular malformations rather than glial tumors.

Optic pathway gliomas are a classic CNS tumor seen in neurofibromatosis type 1 (NF1). The NF1 gene encodes neurofibromin, a negative regulator of Ras signaling; when NF1 function is lost, Ras-driven glial cell proliferation increases, predisposing to gliomas, especially along the optic pathway in children. This makes NF1 the genetic syndrome most strongly linked with CNS gliomas, including optic pathway involvement. By comparison, Prader-Willi is an imprinting disorder with endocrine and behavioral features, tuberous sclerosis is more associated with subependymal giant cell astrocytomas and cortical tubers rather than typical optic pathway gliomas, and Sturge-Weber involves vascular malformations rather than glial tumors.

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