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| {{Pheochromocytoma}}
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| {{CMG}}
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| ==Overview==
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| A '''pheochromocytoma''' ('''phaeochromocytoma''' outside of the US) is a [[neuroendocrine tumor]] of the [[Adrenal medulla|medulla]] of the [[adrenal gland]]s (originating in the [[chromaffin cell]]s) or extra-adrenal chromaffin tissue which failed to involute after birth,<ref>{{cite book |author=Boulpaep, Emile L.; Boron, Walter F. |title=Medical physiology: a cellular and molecular approach |publisher=Saunders |location=Philadelphia |year=2003 |pages=1065 |isbn=0-7216-3256-4 |oclc= |doi=}}</ref> which secretes excessive amounts of [[catecholamine]]s, usually [[epinephrine]] and [[norepinephrine]].
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| Extra-adrenal [[paragangliomas]] (often described as extra-adrenal pheochromocytomas) are closely related, though less common, tumors that originate in the [[ganglion|ganglia]] of the [[sympathetic nervous system]] and are named based upon the primary anatomical site of origin.
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| ==References==
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| {{Reflist|2}}
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| [[Category:Endocrinology]]
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| [[Category:Oncology]]
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| [[de:Phäochromozytom]]
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| [[es:Feocromocitoma]]
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| [[fr:Phéochromocytome]]
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| [[it:Feocromocitoma]]
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| [[he:פאוכרומוציטומה]]
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| [[nl:Feochromocytoom]]
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| [[ja:褐色細胞腫]]
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| [[pl:Guz chromochłonny nadnerczy]]
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| [[sv:Feokromocytom]]
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