Neurofibromatosis type 2 (NF2)

What it is

Neurofibromatosis type 2 (NF2) is a genetic condition, distinct from NF1, that predisposes to certain nervous-system tumors. It is best known for tumors of the hearing and balance nerves (vestibular schwannomas) and meningiomas, and among gliomas, it is associated with ependymomas (particularly spinal ependymomas).

Understanding Neurofibromatosis type 2 (NF2)

NF2 results from a change in the NF2 gene and characteristically causes vestibular schwannomas (often on both sides), meningiomas, and ependymomas. While NF2 is less associated with the common diffuse gliomas, its link to ependymomas — especially in the spinal cord — is relevant in the glioma context. People with NF2 are monitored with periodic imaging for the various tumors they are at risk for, including spinal ependymomas. Recognizing NF2 matters for comprehensive surveillance and for considering risk to relatives. Because NF2 mainly involves other tumor types, it is a smaller part of the glioma picture than NF1, but its association with ependymomas is worth knowing. Understanding NF2 and gliomas clarifies a genetic condition associated mainly with other tumors but linked to ependymomas.

Why it matters

Understanding NF2 and gliomas helps patients and families see that this genetic condition — mainly linked to other nervous-system tumors — is associated with ependymomas, for which affected people are monitored.