see Posttraumatic hypopituitarism
Acromegaly overproduction growth hormone
Cushing's disease overproduction adrenocorticotropic hormone
Growth hormone deficiency underproduction growth hormone
Syndrome of inappropriate antidiuretic hormone overproduction vasopressin
Diabetes insipidus
(can also be nephrogenic) underproduction vasopressin
Sheehan syndrome underproduction any pituitary hormone
Pickardt-Fahlbusch-Syndrome underproduction any pituitary hormone, except prolactin, which is increased
Hyperpituitarism (most commonly pituitary neuroendocrine tumor) overproduction any pituitary hormone
Hypopituitarism underproduction any pituitary hormone
There is accumulating evidence that survivors of intracranial malignancy, who have required cranial irradiation, may develop hypopituitarism. The time course of the development of hormone deficits is varied, and predictors of pituitary dysfunction are unreliable. Furthermore, diagnosis of GH and ACTH deficiency require dynamic testing that can be resource intensive. Thus the surveillance and management of neuroendocrine dysfunction in neurosurgical patients poses significant logistic challenges to endocrine services. However, diagnosis and management of pituitary dysfunction can be rewarding. Appropriate hormone replacement can improve quality of life, prevent complications such as muscle atrophy, infection and osteoporosis and improve engagement with physiotherapy and rehabilitation 1).