%0 Case Reports %T [Williams-Beuren syndrome: a retrospective study of a series of 11 cases at the Mohammed VI University Hospital in Marrakech]. %A Bouzid FZ %A Hammou HA %A Akallakh H %A Dafir K %A Tajir M %A Aboussair N %J Pan Afr Med J %V 46 %N 0 %D 2023 %M 38405095 暂无%R 10.11604/pamj.2023.46.94.29604 %X Williams-Beuren syndrome is a rare genetic disease (1/20 000) characterized by a microdeletion at 7q11.23 encompassing about 28 genes, including the elastin gene, ELN. It is a sporadic disease in the majority of cases. Easily identifiable in childhood, this developmental disorder associates suggestive face dysmorphism, cardiac defect, psychomotor retardation and specific behavioural and cognitive profile. We conducted a retrospective study of 11 patients with Williams-Beuren syndrome whose data were collected in the Genetics Department of the Mohammed VI University Hospital of Marrakech. The average age of patients was 6.05 years (SD=6.56; interquartile range=5), with a female predominance (64%; 7/11 patients). Almost all patients were mentally retarded and the diagnosis was confirmed in 100% (11) of patients using fluorescence in situ hybridisation (FISH).