Neurofibromatosis Type 1

2017 ◽  
Author(s):  
David S. Wolf
Keyword(s):  
Learning Disabilities ◽  
Neurofibromatosis Type 1 ◽  
Autosomal Dominant ◽  
Neurofibromatosis Type ◽  
Vascular Abnormalities ◽  
Hyperactivity Disorder ◽  
Café Au Lait Spots ◽  
Lisch Nodules ◽  
Neurocutaneous Disorder

Neurofibromatosis type 1 is a common, autosomal dominant, monogenetic neurocutaneous disorder. It is characterized by café au lait spots, axillary and inguinal freckling, Lisch nodules, optic pathway gliomas, neurofibromas, and distinctive bony abnormalities. Also associated with this condition are other central nervous system tumors, scoliosis, hypertension, vascular abnormalities, and cognitive issues such as learning disabilities and attention deficit-hyperactivity disorder.

scholarly journals Legius Syndrome in a 13 Month Old Boy: A Case Report

2017 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Learning Disabilities ◽  
Case Report ◽  
Developmental Delay ◽  
Neurofibromatosis Type 1 ◽  
Autosomal Dominant ◽  
Clinical Manifestations ◽  
Neurofibromatosis Type ◽  
Café Au Lait Spots ◽  
Legius Syndrome

Legius syndrome is autosomal dominant and caused by mutations in the SPRED1 gene. Clinical manifestations include multiple cafe-au-lait spots, axillary/ inguinal freckling and a degree of macrocephaly, without the non-pigmentary signs of neurofibromatosis type 1 (NF1). Learning disabilities, developmental delay and ADHD are also known.

A clinical, genetic and audiological study of patients and families with bilateral acoustic neurofibromatosis

1993 ◽  
Vol 107 (1) ◽  
pp. 6-11 ◽  
Author(s):  
W. J. Neary ◽  
V. E. Newton ◽  
M. Vidler ◽  
R. T. Ramsden ◽  
R. H. Lye ◽  
...  
Keyword(s):  
Autosomal Dominant ◽  
Neurofibromatosis Type ◽  
Team Approach ◽  
Clinical Genetic ◽  
Acoustic Neuromas ◽  
Café Au Lait Spots ◽  
Lisch Nodules ◽  
Hereditary Disorders

AbstractThe neurofibromatoses consist of at least two distinct autosomal dominant hereditary disorders. Neurofibromatosis type 1 (NF1) is due to a lesion on chromosome 17q. Neurofibromatosis type 2 (NF2) is caused by a defect on chromosome 22q. The hallmark of NF2 is the development, in the second and third decades, of bilateral acoustic neuromas. NF1 is characterized by the appearance of cafe-au-lait spots and neurofibromas in addition to iris hamartomas, or Lisch nodules, of the eye, during the first and second decades.Ten families were personally studied. A total of 16 members were found to be affected with NF2. A protocol for evaluation and review of subjects and relatives of NF2 families is proposed. A team approach, coordinating the expertise of multiple specialties is recommended.

scholarly journals Neurofibromatosis Type 1 Complicated by Atypical Coarctation of the Thoracic Aorta

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
Masato Kimura ◽  
Shuhei Kakizaki ◽  
Kengo Kawano ◽  
Shinichi Sato ◽  
Shigeo Kure
Keyword(s):  
Thoracic Aorta ◽  
Neurofibromatosis Type 1 ◽  
Aortic Coarctation ◽  
Autosomal Dominant ◽  
Genetic Disorder ◽  
Neurofibromatosis Type ◽  
Lisch Nodules ◽  
Atypical Coarctation ◽  
Graft Interposition

Neurofibromatosis type 1 (NF1) is a relatively common autosomal dominant genetic disorder with a prevalence of 1 in 3,000 (0.03%) at birth. Clinical features are café-au-lait macules, intertriginous freckling, dermal neurofibroma, iris hamartoma (Lisch nodules), and learning disability. NF1 vasculopathy is a serious but underrecognized complication involving the cerebrovascular and cardiovascular systems. The incidence of hypertension in patients with NF1 is around 1% and is associated mainly with renal artery stenosis in children. Only a few cases of thoracic aortic coarctation in association with hypertension and neurofibromatosis have been reported. Here we describe the case of a 4-year-old girl who presented with NF1 and hypertension due to atypical coarctation of the thoracic aorta. The diagnosis of coarctation of the thoracic aorta at the Th5-to-Th6 level was made following catheterization with a pressure gradient of 40 mmHg. The patient underwent surgery comprising resection of the coarctation of the thoracic aorta and graft interposition. On the basis of our findings, annual assessment of blood pressure is advised for patients with NF1.

Satisfaction from surgical treatment and its’ influence on comfort of feeling in patients with Recklinghausen disease

2020 ◽  
Vol 92 (4) ◽  
pp. 31-37
Author(s):  
Marta Fijałkowska ◽  
Bogusław Antoszewski
Keyword(s):  
Surgical Treatment ◽  
Plastic Surgery ◽  
Neurofibromatosis Type 1 ◽  
Autosomal Dominant ◽  
Demographic Factors ◽  
Neurofibromatosis Type ◽  
Self Confidence ◽  
Café Au Lait Spots ◽  
Recklinghausen Disease

Background. Neurofibromatosis type 1 (NF-1) is one of the most common autosomal dominant disorders. Multiple benign dermal neurofibromas, cafe´ au lait spots, axillary and inguinal freckling are the hallmarks of NF1. Aim. The aim of this paper is to verify if surgical treatment performed in patients with NF-1 is satisfactory for them and to describe demographic factors characteristic to patients with Recklinghausen disease. Methods. A special questionnaire was prepared for the study, which contained 45 questions. Seventeen patients with neurofibromatosis type 1 agreed to fill in the questionnaire aged from 22 to 61 years. Results. Surgical treatment in patients was started between 6 and 45 years of age. All patients declare their will to continue surgical treatment. After treatment patients think that they are more comfortable, more self-confident and sociable. The first symptoms of neurofibromatosis were seen in about 13 years of life in most patients. In the group of women who gave a birth all of them noticed progression of the disease during pregnancy. Conclusions. Performed surgical treatment raises life comfort and increase self-confidence in patients with neurofibromatosis type 1. Due to visibility of neurofibromas it is worth to refer patients to Department of Plastic Surgery. Doctors dealing with patient with NF-1shoud inform them about its inheritance basis and that puberty and pregnancy intensify the process of skin neurofibroma development.

scholarly journals Genotype-Phenotype Correlations in Neurofibromatosis Type 1: A Single-Center Cohort Study

Cancers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1879
Author(s):  
Marcello Scala ◽  
Irene Schiavetti ◽  
Francesca Madia ◽  
Cristina Chelleri ◽  
Gianluca Piccolo ◽  
...  
Keyword(s):  
Neurofibromatosis Type 1 ◽  
Neurofibromatosis Type ◽  
Copy Number Variations ◽  
Single Nucleotide Variants ◽  
Multivariate Statistical ◽  
Gene Deletions ◽  
Pathogenic Variants ◽  
Lisch Nodules ◽  
Next Generation Sequencing Ngs

Neurofibromatosis type 1 (NF1) is a proteiform genetic condition caused by pathogenic variants in NF1 and characterized by a heterogeneous phenotypic presentation. Relevant genotype–phenotype correlations have recently emerged, but only few pertinent studies are available. We retrospectively reviewed clinical, instrumental, and genetic data from a cohort of 583 individuals meeting at least 1 diagnostic National Institutes of Health (NIH) criterion for NF1. Of these, 365 subjects fulfilled ≥2 NIH criteria, including 235 pediatric patients. Genetic testing was performed through cDNA-based sequencing, Next Generation Sequencing (NGS), and Multiplex Ligation-dependent Probe Amplification (MLPA). Uni- and multivariate statistical analysis was used to investigate genotype–phenotype correlations. Among patients fulfilling ≥ 2 NIH criteria, causative single nucleotide variants (SNVs) and copy number variations (CNVs) were detected in 267/365 (73.2%) and 20/365 (5.5%) cases. Missense variants negatively correlated with neurofibromas (p = 0.005). Skeletal abnormalities were associated with whole gene deletions (p = 0.05) and frameshift variants (p = 0.006). The c.3721C>T; p.(R1241*) variant positively correlated with structural brain alterations (p = 0.031), whereas Lisch nodules (p = 0.05) and endocrinological disorders (p = 0.043) were associated with the c.6855C>A; p.(Y2285*) variant. We identified novel NF1 genotype–phenotype correlations and provided an overview of known associations, supporting their potential relevance in the implementation of patient management.

scholarly journals The Learning Disabilities Network (LeaDNet): Using neurofibromatosis type 1 (NF1) as a paradigm for translational research

2012 ◽  
Vol 158A (9) ◽  
pp. 2225-2232 ◽  
Author(s):  
Maria T. Acosta ◽  
Carrie E. Bearden ◽  
Xavier F. Castellanos ◽  
Laurie Cutting ◽  
Ype Elgersma ◽  
...  
Keyword(s):  
Learning Disabilities ◽  
Translational Research ◽  
Neurofibromatosis Type 1 ◽  
Neurofibromatosis Type
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