Table 1

Diagnostic criteria for NF2

A diagnosis of NF2 is made in a patient who has (NIH criteria, 1987):
    Bilateral vestibular schwannomas
    OR family history of NF2
    PLUS unilateral vestibular schwannoma
    OR any two of: meningioma, glioma, neurofibroma, schwannoma, posterior subcapsular lenticular opacities
A diagnosis of NF2 can also be made in a patient who has (Evans et al6):
    Unilateral vestibular schwannoma
    PLUS any two of: meningioma, glioma, neurofibroma, schwannoma, posterior subcapsular lenticular opacities
    OR multiple meningiomas (2 or more)
    PLUS unilateral vestibular schwannoma
    OR any two of: glioma, neurofibroma, schwannoma, cataract