What will a diagnosis of cushing's disease do to a child early in life (before 5yo?)

Numerous conditions: Untreated or improperly treated cushings disease can lead to obesity, diabetes and hypertension. There are also certain physical traits that can accompany this diagnosis such as hairiness, acne, round face, truncal obesity as well as stretch marks.

Various things: Classic cushing's is extremely rare in children. They can have usual cushing's features plus stunted height.

Exceedingly rare: Cushing's disease, as opposed to syndrome, can be very difficult to diagnose and treat in children. It is rare enough that he should be in the care of pediatric endocrinologists and pediatric neurosurgeons who have experience treating this. Please talk to his pediatric endocrinologist about this. The nih does see patients like this also. Best wishes.