Why is early diagnosis such a problem?
The confusing constellation of symptoms that can be produced by pituitary tumors and the difficult to visualize location make diagnosis very tricky. It is not uncommon for patients to have symptoms of either hormonal deficiency (caused by compression of the pituitary or its “stalk”) or hormone excess (caused by unregulated production of hormones by the pituitary tumor). In a significant minority of patients diagnosis is not made until the individual has developed debilitating or life-threatening symptoms of heart disease or adrenal (uncommon), gonadal and/or thyroid insufficiency. Even in the 21st century death from a large pituitary tumor or hormonal deficiency still occurs, albeit rarely. Early diagnosis is usually a reflection of a high index of suspicion on the part of a physician. Unfortunately, many doctors have been taught that pituitary disease is rare, so it is not at the forefront of their list of possible diagnoses.
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