<prompt> A person sustains head trauma leading to transaction of pituitary stalk. All can be consequence of this, exceptSIADHDiabetes mellitusDiabetes insipidusHyperprolactinemia  <response>: Answer is B Diabetes mellitus: Insulin is a pancreatic hormone, not under the control of pituitary. Transection of the pituitary stalk would therefore in no way affect glucose levels or lead to diabetes mellitus. 