One in 25,000 people worldwide is affected by neurofibromatosis type 2 (NF2), a condition where the loss of a tumour suppressor called Merlin results in multiple tumours in the brain and nervous system. Sufferers may experience 20 to 30 tumours at any one time and such numbers often lead to hearing loss, disability and eventually death. Currently, the only available effective therapies are repeated invasive surgery or radiotherapy aimed at one tumour at a time and which are unlikely to eradicate all the tumours in one go. NF2 can affect any family, regardless of past history, through gene mutation. There is no cure.
