De novo KAT6B mutation causes Say-Barber-Biesecker-Young-Simpson variant of Ohdo syndrome in an Iranian boy: a case report.
J Med Case Rep
; 18(1): 4, 2024 Jan 05.
Article
em En
| MEDLINE
| ID: mdl-38178270
ABSTRACT
BACKGROUND:
Say-Barber-Biesecker-Young-Simpson (SBBYS) (OMIM #603736, Ohdo syndrome variant) is a rare type of severe blepharophimosis intellectual disability syndrome, which is generally characterized by a global developmental delay, distinctive facial features, and intellectual disability with multiple congenital anomalies, including skeletal involvement, missing, or underdeveloped kneecaps, and genital anomalies, in affected males. It has been shown that mutations in the KAT6B gene, which is a lysine acetyltransferase-encoding gene, have been associated with SBBYS syndrome. All the known variants are dominant de novo mutations that result in protein truncation. CASE PRESENTATION A 14-year-old Iranian Azeri boy with an intellectual disability, distinct dysmorphic facial features such as open-mouth expression, sparse medial eyebrows, widely spaced upward-slanted eyes, epicanthal folds, broad nasal bridge, low-set ears, anteverted ears, short philtrum, hypertelorism, microphthalmia is presented in this case study. Cryptorchidism was reported. Neurologically, the patient presented with poor eye contact, hypotonia, and speech difficulties. In the skeletal X-ray, underdeveloped kneecaps with some new features were observed.CONCLUSION:
We present the first case of SBBYS syndrome in association with some new anomaly features in the Iranian population. Based on this diagnosis, we could provide the patient with a suitable plan of management as well as appropriate genetic counseling for his family.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Blefarofimose
/
Deficiência Intelectual
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
Limite:
Adolescent
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
J Med Case Rep
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Irã