Back to Search
Start Over
Acanthosis nigricans in a Chinese girl with FGFR3 K650 T mutation: a case report and literature review.
- Source :
-
BMC medical genetics [BMC Med Genet] 2019 Jan 11; Vol. 20 (1), pp. 8. Date of Electronic Publication: 2019 Jan 11. - Publication Year :
- 2019
-
Abstract
- Background: Acanthosis nigricans (AN) is a clinical manifestation featured by velvety brown plaques in skin folds that occurs in some hereditary and syndromic disorders. Fibroblast growth factor receptor 3 (FGFR3) mutations have been identified as one of the genetic causes of inherited AN.<br />Case Presentation: A 17-year-old Chinese female had presented generalized acanthosis nigricans since she was 4 years old. She yielded no family history of short stature or AN. Apart from a short stature, no skeletal defects, neurological defects or other abnormalities were found. To identify the aetiology of the clinically diagnosed AN, we screened the proband for genetic mutations using whole exome sequencing. A heterozygous mutation (c.1949A > C, p.Lys650Thr) in FGFR3 was found in the proband. To date, 26 cases of AN harbouring this specific gene mutation have been reported in the literature, and only one child carried a de novo mutation instead of inheriting the specific mutation from their parents. The present case is the first-reported Chinese patient with isolated AN with a de novo K650 T mutation in FGFR3.<br />Conclusions: We reported a new case of AN caused by a heterozygous mutation (c.1949A > C, p.K650 T) in FGFR3, and review the past reports of AN with the same gene mutation. Sequencing of the FGFR3 gene is a feasible approach to identify the aetiology of AN, especially for early onset extensive AN.
- Subjects :
- Acanthosis Nigricans diagnosis
Acanthosis Nigricans physiopathology
Adolescent
Asian People
DNA Mutational Analysis
Dwarfism genetics
Exons
Female
Heterozygote
Humans
Pedigree
Exome Sequencing
Acanthosis Nigricans genetics
Genetic Predisposition to Disease
Mutation
Receptor, Fibroblast Growth Factor, Type 3 genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1471-2350
- Volume :
- 20
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- BMC medical genetics
- Publication Type :
- Academic Journal
- Accession number :
- 30635042
- Full Text :
- https://doi.org/10.1186/s12881-019-0748-4