An Observational, Clinical Study to Collect the Medical Data in Order to Determine the Craniofacial Characteristics Through Phenotypic Analysis on Children With Sensenbrenner Treated/Followed at the Hôpital Femme Mère Enfant From 2005

Sensenbrenner syndrome, also known as cranioectodermal dysplasia (CED), is a rare autosomal-recessive disorder belonging to the ciliopathy group of diseases. It is characterized by a facial dysmorphism, abnormal bone development and ectodermal defects including dental anomalies. CED is a heterogeneous condition with significant phenotypic and molecular variability, whose spectrum may include cases of renal impairment, hepatic fibrosis, retinitis pigmentosa and/or brain anomalies. In many cases, patients develop chronic kidney disease (CKD) due to nephronophthisis between 2 and 6 years of age. The aim of this retrospective study is to better understand the characteristics of this syndrome and to find prognostic factors of CKD. We make the hypothesis that an early diagnosis of the syndrome would lead to a better global management of patients (quality of life, delayed onset of end-stage renal disease).