Pheochromocytoma: Difference between revisions

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==Background==
==Background==
* Pheochromocytoma is a rare tumor arising from chromaffin cells in adrenal medulla or other paraganglia in the body.
*Rare tumor arising from chromaffin cells in adrenal medulla or other paraganglia in the body
* Pheochromocytomas cause increased catecholamine production leading to its clinical manifestations.
*Increased catecholamine production leading to its clinical manifestations


==Clinical Features==
==Clinical Features==
* headache
*Headache
* alternating periods of normal and elevated blood pressure. Can cause resistant hypertension and hypertensive emergency.
*Alternating periods of normal and elevated blood pressure, and can cause resistant hypertension and hypertensive emergency
* tachycardia
*Tachycardia
* flushed skin
*Flushed skin
* palpitations
*Palpitations
* diaphoresis
*Diaphoresis
* weight loss
*Weight loss
 
==Differential Diagnosis==
==Differential Diagnosis==
* hypertensive crisis
{{Hypertension DDX}}
* sympathomimetic drug use (cocaine, amphetamine, PCP)
* withdrawal from alcohol, benzodiazepines, or narcotics
* serotonin syndrome
* autonomic neuropathy
* porphyria


==Diagnosis==
==Diagnosis==
* plasma free metanephrines or urinary fractionated metanephrines
*Plasma free metanephrines
* CT imaging to localize tumor
*Urinary fractionated metanephrines
* general lab features include hyperglycemia, hypercalcemia, and erythrocytosis
*CT imaging to localize tumor
*General lab features include hyperglycemia, hypercalcemia, and erythrocytosis
 
==Management==
==Management==
* alpha blockade with phenoxybenzamine or phentolamine acutely
*Alpha blockade with phenoxybenzamine or phentolamine acutely
* beta blockade can be started 2 days later
*Beta blockade can be started 2 days later
* eventual surgical resection of tumor
*Eventual surgical resection of tumor
 
==Disposition==
==Disposition==
* admission to a monitored setting
*Admission to a monitored setting
 
==See Also==
==See Also==
*[[Hypertensive emergency]]


==External Links==
==External Links==


==References==
==References==
<references\>
*1. Garg, M., Brar, K., Mittal, R., Kharb, S., & Gundgurthi, A. (2011). Medical management of pheochromocytoma: Role of the endocrinologist. Indian Journal Of Endocrinology And Metabolism, 15(8), 329. http://dx.doi.org/10.4103/2230-8210.86976
*1. Garg, M., Brar, K., Mittal, R., Kharb, S., & Gundgurthi, A. (2011). Medical management of pheochromocytoma: Role of the endocrinologist. Indian Journal Of Endocrinology And Metabolism, 15(8), 329. http://dx.doi.org/10.4103/2230-8210.86976
*2. WJ Elliott, J Varon. Drugs used for the treatment of hypertensive emergencies. In: UpToDate, Post TW (Ed), UpToDate, Waltham, MA. (Accessed on January 11, 2016.)
*2. WJ Elliott, J Varon. Drugs used for the treatment of hypertensive emergencies. In: UpToDate, Post TW (Ed), UpToDate, Waltham, MA. (Accessed on January 11, 2016.)
*3. DM Cline, AJ Machado (2015). "Systemic and Pulmonary Hypertension." Tintinalli's Emergency Medicine. Mcgraw-Hill Education.
*3. DM Cline, AJ Machado (2015). "Systemic and Pulmonary Hypertension." Tintinalli's Emergency Medicine. Mcgraw-Hill Education.
*4. Pheochromocytoma. (n.d.). In Wikipedia. Retrieved January 11, 2016, from http://en.wikipedia.org/wiki/pheochromocytoma
*4. Pheochromocytoma. (n.d.). In Wikipedia. Retrieved January 11, 2016, from http://en.wikipedia.org/wiki/pheochromocytoma

Revision as of 12:35, 12 January 2016

Background

  • Rare tumor arising from chromaffin cells in adrenal medulla or other paraganglia in the body
  • Increased catecholamine production leading to its clinical manifestations

Clinical Features

  • Headache
  • Alternating periods of normal and elevated blood pressure, and can cause resistant hypertension and hypertensive emergency
  • Tachycardia
  • Flushed skin
  • Palpitations
  • Diaphoresis
  • Weight loss

Differential Diagnosis

Hypertension

Diagnosis

  • Plasma free metanephrines
  • Urinary fractionated metanephrines
  • CT imaging to localize tumor
  • General lab features include hyperglycemia, hypercalcemia, and erythrocytosis

Management

  • Alpha blockade with phenoxybenzamine or phentolamine acutely
  • Beta blockade can be started 2 days later
  • Eventual surgical resection of tumor

Disposition

  • Admission to a monitored setting

See Also

External Links

References

<references\>

  • 1. Garg, M., Brar, K., Mittal, R., Kharb, S., & Gundgurthi, A. (2011). Medical management of pheochromocytoma: Role of the endocrinologist. Indian Journal Of Endocrinology And Metabolism, 15(8), 329. http://dx.doi.org/10.4103/2230-8210.86976
  • 2. WJ Elliott, J Varon. Drugs used for the treatment of hypertensive emergencies. In: UpToDate, Post TW (Ed), UpToDate, Waltham, MA. (Accessed on January 11, 2016.)
  • 3. DM Cline, AJ Machado (2015). "Systemic and Pulmonary Hypertension." Tintinalli's Emergency Medicine. Mcgraw-Hill Education.
  • 4. Pheochromocytoma. (n.d.). In Wikipedia. Retrieved January 11, 2016, from http://en.wikipedia.org/wiki/pheochromocytoma