b'3Neurofibromatosis Type 1Definition and diagnostic criteriaNF1 is a genetic condition which occurs in approximately 1 in 3000 people, half of these will be new mutations, and half will have inherited it from their parents. The diagnosis of NF1 is usually straight forward, and is based clinically on the NIH diagnostic criteria, and confirmed if necessary, through blood tests.Further information and the management guidelines for NF1 can be downloaded from this websitewww.mangen.co.ukNeurofibromatosis Type 1Extra child health checksThe next page describes the extra health checks which are needed for your child and the age these should be carried out. Details are given about the actual tests or procedures advised. Your GP or Health Visitor will be able to explain these to you.Different areas organise their child health services in different ways so the schedule will not always be followed precisely. However, if you think that your child has missed out on one of these checks take this book along to your GP or Health Visitor or Paediatrician and ask if you can have the checks carried out.PCHR Insert for Neurofibromatosis Type 1 First Edition April 2017'