CHARGE syndrome patient with novel CHD7 mutation presenting with severe laryngomalacia and feeding difficulty

We report a case of CHARGE syndrome with atypical phenotype and a novel mutation in the CHD7 gene. Laryngomalacia and swallowing difficulties are prominent features in this case. These are commonly found in patients with CHARGE syndrome and are well described in previous studies. However, with the t...

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Veröffentlicht in:BMJ case reports 2020-07, Vol.13 (7), p.e233037
Hauptverfasser: Lau, Cheuk Lam, Chee, Yuet Yee, Chung, Brian Hon Yin, Wong, Ming Sum Rosanna
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Sprache:eng
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Zusammenfassung:We report a case of CHARGE syndrome with atypical phenotype and a novel mutation in the CHD7 gene. Laryngomalacia and swallowing difficulties are prominent features in this case. These are commonly found in patients with CHARGE syndrome and are well described in previous studies. However, with the traditional diagnostic criteria, diagnosis is difficult without the presence of coloboma or choanal atresia. Early diagnosis is possible with the aid of clinical genetics. The current diagnostic criteria would need to be broadened with the inclusion of pathogenic CHD7 variant status as a major criterion. Further research on the function of CHD7 gene may also give us more insight on the pathogenic mechanism of various clinical features of CHARGE syndrome.
ISSN:1757-790X
1757-790X
DOI:10.1136/bcr-2019-233037