Final answer:
The symptoms of a large baby, large tongue, and ear pits suggest a diagnosis of Beckwith-Wiedemann syndrome, a genetic overgrowth disorder. Associated gastrointestinal issues can include omphalocele, diastasis recti, and umbilical hernia.
Step-by-step explanation:
The symptoms described, which include a large baby (macrosomia), an unusually large tongue (macroglossia), and ear pits (preauricular pits), are suggestive of Beckwith-Wiedemann syndrome (BWS). BWS is a genetic overgrowth disorder typically present at birth, characterized by an increased risk of childhood cancer and various congenital features. Ear pits are small pits or sinuses near the front of the ear.
Regarding the associated gastrointestinal issue, children with Beckwith-Wiedemann syndrome may be at increased risk for developing omphalocele, which is a congenital defect in the abdominal wall where the intestines, liver, and other organs remain outside the abdomen in a sac because of a hole in the belly-button area. This requires surgical repair after birth. Other gastrointestinal problems such as diastasis recti, an abnormal separation of the abdominal muscles, and umbilical hernia, where part of the intestine protrudes through the umbilical opening, can also be associated with Beckwith-Wiedemann syndrome.