My son is almost 7 years old and he has growth issue. His test as follows : GH Exercise Test : pre exercise : 0.424 ng/ml post exercise : 0.437 ng/ml Bone Age according to digital atlas of skeletal maturity is 84 months. TSH : 1.77 mIU/L Question : Under the above situations , should I go for his MRI Pituitary ? No symptoms of loss of eye vision , disbalancing , vomiting etc . Lack of growth from his birth . Current weight : 18 kg , Height : approx 2.5 ft .