Glossary of terms

      Central neurofibromatosis (another name for neurofibromatosis type II) occurs as a result of a mutation of the merlin gene (also known as schwannomin or NP2), which is located on chromosome 22q12. This gene also belongs to the tumor suppressor genes. Type 2 neurofibromatosis accounts for only 10% of all cases of the disease, i.e. its incidence is much lower compared to NF1.