Beckwith–Wiedemann syndrome is a rare congenital autosomal dominant disorder with macroglossia being the cardinal symptoms. The tongue usually shows diffuse, smooth, genralized enlargement. Other symptoms include : Large size for a newborn. Red birth mark on forehead or eyelids (nevus flammeus) Creases in ear lobes. Low blood sugar. Abdominal wall defect (umbilical hernia or omphalocele) Enlargement of some organs. In pronounced cases, macroglossia can lead to airway obstruction, musculoskeletal alterations and functional deficits. Surgical tongue reduction is performed at varying ages and with different techniques. By: https://www.ijoms.com/article/S0901-5027%2818%2930256-X/fulltext