Warning: simplexml_load_file(http://api.omim.org/api/entry?mimNumber=162200&include=text:description&apiKey=nF1Y-SFBSLOjxS6VQpq65A): failed to open stream: HTTP request failed! HTTP/1.1 400 in /customers/0/2/d/mitodb.com/httpd.www/symptoms.php on line 485 Warning: simplexml_load_file(): I/O warning : failed to load external entity "http://api.omim.org/api/entry?mimNumber=162200&include=text:description&apiKey=nF1Y-SFBSLOjxS6VQpq65A" in /customers/0/2/d/mitodb.com/httpd.www/symptoms.php on line 485
We were unfortunately unable to download the information for this disease from OMIM.
Prevalence of clinical parameters (%)
Add new symptom/sign to this disease
List of symptoms
List of references:
Type 1 neurofibromatosis: a descriptive analysis of the disorder in 1,728 patients.
J M Friedman, P H Birch,
Type 1 Neurofibromatosis, NF1, is a common genetic disorder with variable clinical manifestations. Although NF1 often is only of cosmetic concern, serious and even lethal complications may occur. It is not possible to predict which symptoms will develop in any affected individual. The NNFF International Database is a multicentre collaborative system for collecting information about this condition. At the time of this analysis, complete clinical information was available on 1,479 probands and 249 of their affected relatives with NF1. On average, the age at diagnosis of NF1 was 8 years younger in the probands than in the affected relatives (P<.01). Many of the manifestations of NF1 were more frequent in the probands than in their affected relatives. The age-specific prevalence of most manifestations of NF1 increases with age. Despite biases inherent in a convenience sample from specialist clinics, the frequencies of many of the serious manifestations of NF1 are similar to those of two smaller population-based studies. The frequencies in this study are likely representative of patients seen at specialized clinics.
American journal of medical genetics - May 1997
Prospective evaluation of the brain in asymptomatic children with neurofibromatosis type 1: relationship of macrocephaly to T1 relaxation changes and structural brain abnormalities.
R G Steen, J S Taylor, J W Langston, J O Glass, V R Brewer, W E Reddick, R Mages, E K Pivnick,
Mutation of the neurofibromatosis type 1 (NF-1) gene may be associated with abnormal growth control in the brain. Because macrocephaly could be a sign of abnormal brain development and because 30% to 50% of children with NF-1 display macrocephaly in the absence of hydrocephalus, we sought to determine the relationship between macrocephaly and other brain abnormalities in young subjects with NF-1. These subjects were free of brain tumor, epilepsy, or other obvious neurologic problems.
AJNR. American journal of neuroradiology - May 2001
Warning: Use of undefined constant jump - assumed 'jump' (this will throw an Error in a future version of PHP) in /customers/0/2/d/mitodb.com/httpd.www/symptoms.php on line 715