A person sustains head trauma leading to transaction of pituitary stalk. All can be consequence of this, except
SIADH
Diabetes mellitus
Diabetes insipidus
Hyperprolactinemia
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.