“…The main symptoms are distinctive facial appearance , psychomotor retardation with friendly behavior [Gosch and Pankau, 1994], typical growth pattern [Pankau et al, 1992;Partsch et al, 1999], and supravalvular aortic stenosis (SVAS) combined with pulmonary artery stenoses [Wessel et al, 1994]. In addition, anomalies of the aorta [Wessel et al, 1997b;Rose et al, 2001] and the renal arteries are common [Pankau et al, 1996;Rose et al, 2000], often leading to arterial hypertension [Wessel et al, 1997a]. Coronary arteries are also involved, probably leading to sudden death in 21 documented cases [Bird et al, 1996;Suares-Mier and Morentin, 1999;Imashuku et al, 2000].…”