Table 2.

Childhood tumor risks to age 16 years in NF2

Chances of symptomatic tumorLikelihood of finding tumor on MRIAdult risk
Vestibular schwannoma25%∼70%–80%100%
Other cranial schwannoma<1%∼20%40%
Meningioma10%15%–20%70%
Ependymoma0.2%–0.5%∼10%25%