Prenatal<unk>  can be tested prenatally on the NHS. Postnatal Ferner et al. give the following diagnostic criteria for<unk> : * Definite * Age >30 years and ≥2 nonintradermal schwannomas, at least one with histologic confirmation and no evidence of vestibular tumor on MRI scan and no known NF mutation, or * One nonvestibular schwannoma plus a first-degree relative with<unk>  * Possible * Age 45 and ≥2 nonintradermal schwannomas, at least one with histologic confirmation and no symptoms of 8th nerve dysfunction and no NF2, or * Nonvestibular schwannoma and first-degree relative with<unk>  * Segmental. Diagnosed as definite or possible but limited to one limb or ≤5 contiguous segments of spine. Another set of criteria are: * Two or more nonintradermal (cutaneous) schwannomas * No evidence of vestibular tumor * No known NF-2 mutation or * One pathologically confirmed nonvestibular schwannoma plus a first degree relative who meets the above criteria.
Schwannomatosis
Ganglioneuroma
Fibrillary astrocytoma
Oligoastrocytoma
Neurothekeoma
Hemangiopericytoma
Lymphangioma
Ganglioglioma