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*Considered to be a [[paraganglioma]].<ref name=Ref_EP327>{{Ref EP|327}}</ref> | *Considered to be a [[paraganglioma]].<ref name=Ref_EP327>{{Ref EP|327}}</ref> | ||
*Literally means "dusky" (pheo) "colour" (chromo) - dull appearance on gross. | *Literally means "dusky" (pheo) "colour" (chromo) - dull appearance on gross. | ||
*Tumour arises from medulla | *Tumour arises from adrenal medulla - chromaffin cells.<ref name=Ref_PCPBoD8_586>{{Ref PCPBoD8|586}}</ref> | ||
Memory device - the rule of 10s:<ref name=Ref_PCPBoD8_586>{{Ref PCPBoD8|586}}</ref> | Memory device - the rule of 10s:<ref name=Ref_PCPBoD8_586>{{Ref PCPBoD8|586}}</ref> | ||
*10% extra-adrenal (e.g. organ of Zuckerkandl). | *10% extra-adrenal (e.g. carotid body, organ of Zuckerkandl (neighourhood of aortic bifuration/IMA branch point)). | ||
*10% bilateral. | *10% bilateral. | ||
*10% malignant. | *10% malignant. | ||
*10% no hypertension. | *10% no hypertension. | ||
*25% associated with [[multiple endocrine neoplasia]] | *25% associated with [[multiple endocrine neoplasia]] 2A and 2B. | ||
====Clinical==== | ====Clinical==== |
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