Harry has a brain tumor that is interfering with the function of his hypothalamus. why could this tumor interfere with autonomic function?

Harry's brain tumor on his hypothalamus can interfere with the autonamic function as the hypothalamus does receive the visceral sensory information thus controlling sympathetic and parasympathetic functions. The hypothalamus is a vital part of the brain as it secrete releasing hormones and hormones that inhibit or stimulate the hormone production in the pituitary.