The most common
genetic disease causing pituitary tumors is called MEN-1 (
Multiple endocrine neoplasia) where glands other than the pituitary, like parathyroid, pancreas also may be involved. This is inherited in an autosomal dominant way. So, if it runs inyour mother's family, you would have inherited it from your mother, and she too would have this disease.
Recent studies indicate that some forms of pituitary adenomas also have a genetic component.