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{{Pituitary adenoma}}
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==Overview==
==Overview==
Pharmacologic medical therapy is recommended among patients with [[prolactinoma]], [[thyrotrophic]], [[somatotrophic]], and [[adrenocorticotrophic hormone|adrenocorticotropic]] adenomas.


'''Pituitary adenomas''' are [[tumor]]s that occur in the [[pituitary gland]], and account for about 10% of intracranial [[neoplasia|neoplasms]]. They often remain undiagnosed, and small pituitary tumors are found in 6 to 24 percent of adults at autopsy.
==Medical Therapy==
Pituitary adenomas arise within the anterior lobe (adenohypophysis) of the gland . Tumors less than 1 cm are called micro adenomas. Clinical symptoms depend on whether the tumor is secreting or nonsecreting. Nonsecreting adenomas grow and compress adjacent structures, most commonly causing a bitemporal hemianopsia due to chiasmatic compression. Lateral extension into the cavernous sinuses can result in cranial nerve palsies.
Treatment options depend on the type of [[tumor]] and on its size:
* '''Prolactinomas''' are most often treated with [[dopamine agonists]] such as [[bromocriptine]] and [[cabergoline]]. The latter, decreases [[tumor]] size as well as alleviates [[symptoms]]. [[Dopamine agonist|Dopamine agonists]] are followed by serial imaging to detect the recurrence. If the adenoma is large, treatment may include [[radiation therapy]] and [[surgery]]. Efforts have been made to use a [[progesterone]] [[antagonist]] for the treatment of prolactinomas, but so far have not proved successful.
* '''Thyrotrophic adenomas''' respond to [[Somatostatin|octreotide, a long-acting somatostatin analog]], in many but not all cases according to a review of the medical literature. Unlike [[prolactinomas]], thyrotrophic adenomas characteristically respond poorly to [[dopamine agonist]] treatment.
*'''Somatotrophic adenomas'''  can be treated with [[Octreotide|somatostatin analogues]], dopamine analogues, and the newer GH-receptor antagonists, such as [[pegvisomant]].
*''' Adrenocorticotropic adenomas''' can be treated with [[ketoconazole]], an inhibitor of [[steroidogenesis]], it's considered as a  drug of choice in adjunctive medical therapy for [[Adrenocorticotropic hormone|ACTH]]-producing adenomas.
*'''Recurrent macroadenoma''' can be treated with [[octreotide]], a long-acting somatostatin analogue. This can result in both reduction of the size of the [[tumour]] and reduction in the [[serum]] levels of [[growth hormone]].<ref name="Radiopaedia"> Dr Amir Rezaee and Dr Yuranga Weerakkody http://radiopaedia.org/articles/pituitary-adenoma 2015. URL accessed on 9 30 2015</ref>
*[[Clomifene]] is contraindicated in patient with pituitary adenoma.


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}
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[[sk:Adenóm hypofýzy]]
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Latest revision as of 19:56, 2 October 2019

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2]

Overview

Pharmacologic medical therapy is recommended among patients with prolactinoma, thyrotrophic, somatotrophic, and adrenocorticotropic adenomas.

Medical Therapy

Treatment options depend on the type of tumor and on its size:

References

  1. Dr Amir Rezaee and Dr Yuranga Weerakkody http://radiopaedia.org/articles/pituitary-adenoma 2015. URL accessed on 9 30 2015