Hemiarhinia caused by a missense variation in SMCHD1: A mild phenotype in the clinical spectrum of Bosma arhinia microphthalmia syndrome.
Am J Med Genet A
; : e63640, 2024 May 29.
Article
em En
| MEDLINE
| ID: mdl-38808953
ABSTRACT
Bosma arhinia microphthalmia syndrome (BAMS, OMIM #603457) is a rare autosomal dominant disorder caused by heterozygous variation in the SMCHD1 gene on chromosome 18p11. Clinically, it is characterized by microphthalmia, absence or hypoplasia of nose, choanal atresia, anosmia, palatal abnormalities, hypogonadotropic hypogonadism, and cryptorchidism. Here we report a Brazilian patient with a likely pathogenic variation in SMCHD1 gene (c.1418A>T; p.Glu473Val) presenting hemiarhinia associated with short stature and hypogonadotropic hypogonadism. Due to the clinical variability of BAMS, we considered that hemiarhinia, without microphthalmia, in the present case, can be considered a mild form of BAMS and could be considered for screening of SMCHD1 gene variation.
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2024
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Article