Intracranial Irradiation most commonly leads to deficiency of: (A) TSH, (B) ACTH, (C) PROLACTIN, (D) GROWTH HORMONE
Answer is D. *Growth Hormone is most radiosensitive pituitary hormone and intracranial irradiation leads to hypopituitarism mainly due to hypothalamic damage rather than pituitary damage *Least radiosensitive pituitary hormone is TSH