Losing my mind - 'Bright Liver' 2.5 year old

Son (2.5 years old) admitted for further tests due to high ALP levels. Yesterday, went for an Ultrasound and they checked the liver. Told her has a 'bright liver' that he would expect to see in an 'overweight adult' however, seems 'mild' but concerning due to age and that the child is of average weight. Any thoughts?