A new diagnosis of Williams-Beuren syndrome in a 49-year-old man with severe bullous emphysema.
Am J Med Genet A
; 173(8): 2235-2239, 2017 Aug.
Article
em En
| MEDLINE
| ID: mdl-28574231
ABSTRACT
Williams-Beuren syndrome (WBS) is a chromosomal microdeletion syndrome typically presenting with intellectual disability, a unique personality, a characteristic facial appearance, and cardiovascular disease. Several clinical features of WBS are thought to be due to haploinsufficiency of elastin (ELN), as the ELN locus is included within the WBS critical region at 7q11.23. Emphysema, a disease attributed to destruction of pulmonary elastic fibers, has been reported in patients without WBS who have pathogenic variants in ELN but only once (in one patient) in WBS. Here we report a second adult WBS patient with emphysema where the diagnosis of WBS was established subsequent to the discovery of severe bullous emphysema. Haploinsufficiency of ELN likely contributed to this pulmonary manifestation of WBS. This case emphasizes the contribution of rare genetic variation in cases of severe emphysema and provides further evidence that emphysema should be considered in patients with WBS who have respiratory symptoms, as it may be under-recognized in this patient population.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Enfisema Pulmonar
/
Elastina
/
Síndrome de Williams
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article