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Overproduction or underproduction of a pituitary hormone will affect the respective end-organ. For example, insufficient production (hyposecretion) of thyroid stimulating hormone (TSH) in the pituitary gland will cause hypothyroidism, while overproduction (hypersecretion) of TSH will cause hyperthyroidism. Thyroidisms caused by the pituitary ...
Hypopituitarism is the decreased (hypo) secretion of one or more of the eight hormones normally produced by the pituitary gland at the base of the brain. [1][2] If there is decreased secretion of one specific pituitary hormone, the condition is known as selective hypopituitarism. [3] If there is decreased secretion of most or all pituitary ...
Sufficiently low production of certain pituitary hormones can be fatal resulting in the failure of the thyroid or adrenal glands. [citation needed] Common symptoms include nausea, vomiting, fatigue, loss of libido, amenorrhea, and dizziness. [1] It is estimated that, typically, it takes from 12 to 40 years for autoimmune destruction to present ...
The pituitary gland or hypophysis is an endocrine gland in vertebrates. In humans , the pituitary gland is located at the base of the brain , protruding off the bottom of the hypothalamus . The human pituitary gland is oval shaped , about 1 cm in diameter, 0.5–1 gram (0.018–0.035 oz) in weight on average, and about the size of a kidney bean .
Rarely, "high cortisol levels can result from abnormal growths in the pituitary glands, which stimulate cortisol production, or adrenal gland disorders that cause excess cortisol release," says ...
Arginine vasopressin deficiency (AVD): This is when the hypothalamus or pituitary gland is damaged by a head injury, brain tumor, surgery, or other diseases or conditions, preventing the ...
Empty sella syndrome is the condition when the pituitary gland shrinks or becomes flattened, filling the sella turcica with cerebrospinal fluid instead of the normal pituitary. [ 2 ] It can be discovered as part of the diagnostic workup of pituitary disorders, or as an incidental finding when imaging the brain. [ 1 ]
In a third of cases no cause is apparent. [2] The underlying mechanism generally involves problems with the pituitary gland. [2] Some cases are associated with a lack of other pituitary hormones, in which case it is known as combined pituitary hormone deficiency. [4] Diagnosis involves blood tests to measure growth hormone levels. [2]