Pituitary tumor: The pituitary is a gland at the base of the brain and responsible for a number of hormones involved in growth, fluid control, male and female development among other things. The most common tumor is an adenoma secreting prolactin which can lead to period irregularity, breast discharge, headaches, etc. An evaluation with a endocrinologist might be helpful if someone you know has been diagnosed.
Answered 3/31/2014
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