An 8m infant presented with FTT and constipation

An 8m infant presented with FTT and constipation. Exam: large tongue and fam hx of prolonged
neonatal jaundice. What is the most likely dx?

a. Downs syndrome
b. Fragile X syndrome c. Praderwilli syndrome
d. DiGeorge syndrome
e. Congenital hypothyroidism
Q. 1. What is the key?
Q. 2. What are the points in favour?
Ans.1. The key is E. Congenital hypothyroidism.
Ans. 2. Points in fevour:i) FTT (failure to thrive) ii) constipation iii) macroglossia iv) prolonged neonatal jaundice.