This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrine Control of the Menstrual Cycle, Subject name: Gynaecology & Obstetrics
Which of the hormone secretion is increased if pituitary stalk is transected? 
Select and explain. 
A. Prolactin, B. ACTH, C. GH, D. None
A: Prolactin
Answer: A: Prolactin 
Explanation: Ans. a (Prolactin) (Ref. H - 18th/pg. 50, 351)Pituitary stalk transection syndrome is relatively frequent and should be suspected after cranial trauma or fetal distress syndrome. The outcome is progressive evolution towards panhypopituitarism and these patients require regular clinical survey and hormonal controls.The following are causes of increased prolactin secretion:1. Pregnancy2. Stress or anxiety3. Pituitary stalk compression4. Estrogen therapyPituitary stalk transection is a non-negligible cause of growth hormone (GH) deficiency.