The opposite situation was only present in one case (maximal GH on GST 1.96 ng/mL versus 10.67 ng/mL on ITT—the case of the aforementioned man with a history of two transsphenoidal surgeries for GH-secreting pituitary adenoma four and three years prior to this admission, respectively). The gene discussed is GH1; the disease is pituitary gland adenoma.