Oral surgery, oral medicine, oral pathology and oral radiology · 2012
A novel c.1255G>T (p.D419Y) mutation in SH3BP2 gene causes cherubism in a Turkish family.
Клинический случайСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Dinckan Nuriye, Guven Yeliz, Kayserili Hulya, Aktoren Oya, Uyguner Oya Zehra
Аннотация
Cherubism (MIM no. 118400) is a rare autosomal dominant disorder characterized by bilateral multilocular lesions of the upper and lower jaws. The lesions usually manifest clinically during early childhood, progress until puberty, and regress in adulthood. SH3BP2 is the only gene currently known to be associated with cherubism. This study began with an 8-year-old boy who was referred owing to overgrowth of mandible. A panoramic radiograph revealed multilocular radiolucent lesions of the upper/lower jaws, suggestive of cherubism. Sequence analysis of SH3BP2 revealed a novel c.G1255T change in exon 9 of the gene where 80% of the disease-causing mutations were observed. We report here the clinical and molecular findings of a family with 3 affected members in two generations showing variable clinical expressivity with the regression of symptoms with advancing age and the lack of penetrance.