What are long term effects of damage to the pituitary gland from chemotherapy in a male in his 60's?

Loss of hormones: One may lose control of thyroid & adrenal function. One may no longer secrete antidiuretic hormone with resultant diabetes insipidus. One may stop secreting growth hormone and if a male hormones that stimulate the production of testosterone.These hormones all contribute to organism homeostasis & metabolism. Medical treatment can compensate for their loss.

Low Pituitary: In theory low production of the pituitary hormones may cause 1 or low tsh, fsh, lh, acth, hgh, igf-1, vasopresin, oxytocin, affecting either the thyroid, gonades or testosterone production, cortisol or steroids production, affecting diuresis, causing possible erectile dysfunction and symptoms associated to low human growth hormone (http://www.Cedars-sinai.Edu/patients/health-conditions/adult-growth-hormone-de.