[Neurofibromatosis type I (NF1): peculiarities and complications].

The clinical, radiological and genetic peculiarities of neurofibromatosis type 1 (NF1) or the von Recklinghausen disease are shown. The most common complications of this syndrome are presented. These are optic pathways gliomas and some other tumors of the nervous system and of any other location in the body; oseous alterations with skoliosis, pseudoarthrosis and facial dysplasias as the most important; aqueductal stenosis that frequently appears at the puberty or at adult life; an intellectual level lower than their brothers and sisters without NF1, and some less frequent complications such as endocrinological disorders and corpus callosum agenesis.