Pheochromocytoma causes: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
{{CMG}} {{AE}} {{AAM}} {{MAD}} | {{CMG}} {{AE}} {{AAM}} {{MAD}} | ||
==Overview== | ==Overview== | ||
Pheochromocytoma develops in called [[chromaffin cells]], found in [[adrenal medulla]] which | Pheochromocytoma develops in called [[chromaffin cells]], found in [[adrenal medulla]] which secretes [[adrenaline]], [[noradrenaline]], and [[Dopamine|dopamine.]] The genetic base of pheochromocytoma depends on 2 clusters: cluster 1 tumors are [[Norepinephrine|noradrenergic]]. Cluster 2 tumors are [[adrenergic]]. Familial pheochromocytoma may be caused by a mutation of either ''[[SDHD]],'' ''[[VHL]]'', ''[[SDHB]],'' ''[[RET proto-oncogene|RET]]'', ''[[NF1]]'' genes. | ||
==Causes== | ==Causes== | ||
* Pheochromocytoma develops in called [[chromaffin cells]], found in the [[adrenal medulla]]. | * Pheochromocytoma develops in called [[chromaffin cells]], found in the [[adrenal medulla]]. | ||
Revision as of 18:20, 31 July 2017
|
Pheochromocytoma Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Pheochromocytoma causes On the Web |
|
American Roentgen Ray Society Images of Pheochromocytoma causes |
|
Risk calculators and risk factors for Pheochromocytoma causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2] Mohammed Abdelwahed M.D[3]
Overview
Pheochromocytoma develops in called chromaffin cells, found in adrenal medulla which secretes adrenaline, noradrenaline, and dopamine. The genetic base of pheochromocytoma depends on 2 clusters: cluster 1 tumors are noradrenergic. Cluster 2 tumors are adrenergic. Familial pheochromocytoma may be caused by a mutation of either SDHD, VHL, SDHB, RET, NF1 genes.
Causes
- Pheochromocytoma develops in called chromaffin cells, found in the adrenal medulla.
- Chromaffin cells typically secrete adrenaline, noradrenaline, and dopamine.
- These hormones are sympathetic stimulants.
- Pheochromocytoma results in the irregular and excessive release of these hormones causing hypertension and tachycardia. Approximately 10% are located in chromaffin tissue outside of the adrenal gland, The most common extra-adrenal locations are the abdomen and thorax
- Approximately 10% of tumors are malignant. Commonest sites of spread are the base of skull, head, and neck.
- The genetic base of pheochromocytoma depends on 2 clusters: cluster 1 tumors are noradrenergic. Cluster 2 tumors are adrenergic.[1]
| Cluster 1 | Cluster 2 |
|---|---|
|
References
- ↑ King KS, Pacak K (2014). "Familial pheochromocytomas and paragangliomas". Mol Cell Endocrinol. 386 (1–2): 92–100. doi:10.1016/j.mce.2013.07.032. PMC 3917973. PMID 23933153.