Cleft Palate and Aortic Dilatation as Clues for Loeys-Dietz Syndrome.

Loeys-Dietz syndrome (LDS) is a rare autosomal-dominant disorder of the connective tissue with some typical vascular findings, skeletal manifestations, craniofacial features, and cutaneous findings with a wide phenotypic spectrum. Six different genes are involved in LDS and the diagnosis is based on the identification of a heterozygous pathogenic variant in TGFBR1 , TGFBR2 , SMAD3 , TGFB2 , TGFB3 , or SMAD2 in children with suggestive findings. These genes distinguish LDS into six classes (LDS1-LDS6, respectively). Delay in diagnosis of Loeys-Dietz syndrome may be associated with an adverse prognosis due to a very high augmented risk of early complications such as aortic or vascular rupture. The present report describes a case of an early diagnosis of LDS in a neonate with cleft soft palate and aortic root dilatation.