Endocrinology
Pheochromocytoma
Evaluate patients with paroxysmal or resistant hypertension, catecholamine spells, adrenal incidentaloma, or relevant family history using properly collected fractionated metanephrines; localize only after biochemical evidence, then provide alpha blockade, volume expansion, and expert surgical planning for functional disease.
Case finding
Who requires biochemical testing for pheochromocytoma
Target testing to clinical patterns with meaningful pretest probability.
Screen patients with resistant hypertension; paroxysmal hypertension or hypertensive crisis superimposed on sustained hypertension; episodic headache, sweating, palpitations, pallor, or marked blood-pressure lability; an adrenal incidentaloma; or a first-degree family history of pheochromocytoma or paraganglioma. Orthostatic hypotension and cutaneous neurofibromatosis findings, including café-au-lait macules and neurofibromas, further increase suspicion. jacc+1jacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACCjacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines
In adults with cyanotic congenital heart disease, episodic tachycardia or hypertension should trigger screening with plasma fractionated metanephrines and 24-hour urinary fractionated metanephrines because chronic hypoxemia is associated with increased pheochromocytoma/paraganglioma prevalence in this population. jaccjacc2025 ACC/AHA/HRS/ISACHD/SCAI Guideline for the ... - JACC
During hypertensive emergency or an urgent preoperative assessment, proceed promptly with adrenal or paraganglionic imaging when rapid tumor identification is clinically necessary, while obtaining biochemical testing because metanephrine results may not be immediately available. NatureNatureThe Japanese Society of Hypertension Guidelines for the ... - Nature
Do not frame testing as a routine hypertension screen: pheochromocytoma/paraganglioma accounts for approximately 0.1% to 0.6% of secondary-hypertension evaluations. jacc+1jacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACCjacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines
A known hereditary syndrome or family clustering should lower the threshold for biochemical evaluation and genetic assessment. NEJM+2NEJMPheochromocytoma and ParagangliomaNEJMGerm-Line Mutations in Nonsyndromic PheochromocytomacellFocus on hereditary endocrine neoplasia - Cell Press
Diagnosis
Choose and collect metanephrine testing correctly
Collection conditions determine whether a metanephrine result can direct imaging.
Use either plasma metanephrines obtained under standardized conditions or 24-hour urinary fractionated metanephrines as the initial biochemical evaluation. For plasma testing, collect with the patient supine and an indwelling intravenous cannula in place; this is the specified standard-condition approach in hypertension guidance. jacc+2jacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACCjacc2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA ... - JACCjacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines
A positive biochemical result should lead to localization with CT or MRI of the abdomen and pelvis. In patients whose disease distribution requires broader staging or localization, Ga-DOTATATE PET/CT is included as an imaging option in contemporary hypertension guidance. jaccjacc2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA ... - JACC
Interpret testing in the clinical context rather than using imaging alone to establish functional disease. Pheochromocytomas and sympathetic paragangliomas can produce catecholamines causing episodic tachycardia and hypertension, whereas some paragangliomas may be detected as masses or through hereditary surveillance. jacc+1jacc2025 ACC/AHA/HRS/ISACHD/SCAI Guideline for the ... - JACCWolters KluwerAbstract : Tropical Gastroenterology - Ovid
If plasma sampling was not performed supine with an indwelling cannula, repeat testing under standard conditions before acting on a discordant or borderline clinical result. jacc+1jacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACCjacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines
Use CT or MRI of the abdomen and pelvis as the first anatomic localization study after biochemical evidence is obtained. jacc+1jacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACCjacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines
Use Ga-DOTATATE PET/CT when functional imaging is needed for lesion localization or disease mapping. jaccjacc2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA ... - JACC
When a mass is found before biochemical confirmation
An adrenal incidentaloma is itself an indication for plasma or urinary fractionated metanephrine testing. If urgent surgery or severe hypertension accelerates the workup, obtain biochemical testing while using imaging to identify an adrenal or extra-adrenal lesion. jacc+2jacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACCjacc2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice GuidelinesNatureThe Japanese Society of Hypertension Guidelines for the ... - Nature
Genetics
Identify hereditary pheochromocytoma and paraganglioma
Genotype changes family counseling and surveillance strategy.
Pheochromocytoma may occur as part of RET-associated multiple endocrine neoplasia type 2, von Hippel-Lindau disease, neurofibromatosis type 1, and hereditary paraganglioma syndromes. Multiple head-and-neck paragangliomas, multiple pheochromocytomas, or a family history should prompt hereditary-risk assessment rather than being labeled nonsyndromic. NEJM+1NEJMGerm-Line Mutations in Nonsyndromic PheochromocytomacellFocus on hereditary endocrine neoplasia - Cell Press
Germline VHL mutation can underlie familial pheochromocytoma, as illustrated by affected first-degree relatives and VHL c.298T→C in a reported family. NEJMNEJMPheochromocytoma and Paraganglioma SDHB pathogenic-variant carriers require structured surveillance planning; tumor size and age at first diagnosis have been reported as independent predictors of metastatic behavior and survival in SDHB-related pheochromocytoma/paraganglioma. NatureNatureManagement of phaeochromocytoma and paraganglioma in patients with germline SDHB pathogenic variants: an international expert Consensus statement | Nature Reviews Endocrinology
Metastatic pheochromocytoma/paraganglioma is defined by metastasis to non-chromaffin tissue or local invasion, not by primary-tumor histology alone. This distinction should redirect care toward disease mapping, germline assessment, and multidisciplinary treatment planning. NatureNatureThe Japanese Society of Hypertension Guidelines for the ... - Nature
Document a three-generation history of pheochromocytoma, paraganglioma, MEN2-associated disease, VHL manifestations, and NF1 features before genetic counseling. NEJM+1NEJMGerm-Line Mutations in Nonsyndromic PheochromocytomacellFocus on hereditary endocrine neoplasia - Cell Press
Prioritize genetic evaluation in patients with malignant or metastatic pheochromocytoma/paraganglioma. The LancetThe LancetSupplementary appendix - The Lancet
For SDHB-associated disease, integrate age at diagnosis and primary-tumor size into metastatic-risk discussions and surveillance intensity. NatureNatureManagement of phaeochromocytoma and paraganglioma in patients with germline SDHB pathogenic variants: an international expert Consensus statement | Nature Reviews Endocrinology
Definitive treatment
Prepare functional disease for surgery without provoking crisis
Biochemically functional tumors require adrenergic preparation before resection.
Refer patients with functional pheochromocytoma or sympathetic paraganglioma for planned resection after preoperative alpha-receptor blockade. Endocrine Society guidance recommends preoperative blockade for all functional tumors to prevent perioperative complications, with a high-sodium diet as part of preparation. Oxford AcademicOxford AcademicPheochromocytoma and Paraganglioma: An Endocrine Society ... A perioperative review similarly states that all pheochromocytoma and sympathetic paraganglioma patients should receive alpha-receptor blockade before surgery. Oxford AcademicOxford AcademicPerioperative Management of Pheochromocytomas and ...
Begin alpha-adrenergic blockade 1 to 2 weeks before surgery when elective resection is planned. WileyWileyPerioperative considerations in patients with adrenal tumors Do not proceed directly to tumor manipulation or nonurgent surgery without catecholamine-directed preparation, because intraoperative hemodynamic instability is the central preventable risk. Oxford Academic+2Oxford AcademicPerioperative Management of Pheochromocytomas and ...Oxford AcademicPheochromocytoma and Paraganglioma: An Endocrine Society ...WileyMalignant Pheochromocytomas and Paragangliomas - FITZGERALD
Metyrosine is an adjunct for selected surgical candidates with troublesome or persistent catecholamine symptoms despite blockade. A cited preoperative regimen starts metyrosine at 250 mg orally every 8 to 12 hours; dosing and duration are individualized to catecholamine burden. Oxford Academic+2Oxford AcademicPreoperative Management of the Pheochromocytoma PatientWileyPheochromocytoma/Paraganglioma: Review of Perioperative ...Oxford Academic54. Pheochromocytoma - Oxford Academic Use it as an adjunct rather than a substitute for alpha blockade. Oxford Academic+1Oxford AcademicPheochromocytoma and Paraganglioma: An Endocrine Society ...Oxford Academic54. Pheochromocytoma - Oxford Academic
Start alpha blockade before any beta blockade; beta blockade without prior alpha blockade is not an acceptable substitute for alpha-receptor preparation. Alpha- and beta-blockade are described as perioperative measures, with phenoxybenzamine used for alpha blockade. Oxford AcademicOxford Academic54. Pheochromocytoma - Oxford Academic
Add a high-sodium diet during preoperative preparation as recommended for functional tumors. Oxford AcademicOxford AcademicPheochromocytoma and Paraganglioma: An Endocrine Society ...
Use an experienced anesthesia and surgical team with intensive perioperative monitoring for malignant or complex pheochromocytoma/paraganglioma surgery. WileyWileyMalignant Pheochromocytomas and Paragangliomas - FITZGERALD
Perioperative endpoint and postoperative risk
Plan for postoperative hemodynamic support after resection. Reported paraganglioma cases required transient norepinephrine for postoperative hypotension, illustrating the need for monitored recovery after catecholamine withdrawal and tumor removal. Wolters KluwerWolters KluwerAbstract : Tropical Gastroenterology - Ovid
Advanced disease
Recognize metastatic disease and redirect management
Metastasis changes the objective from localized resection alone to genotype-informed disease control.
Classify pheochromocytoma/paraganglioma as malignant when metastasis is present in non-chromaffin tissue or when there is local invasion. NatureNatureThe Japanese Society of Hypertension Guidelines for the ... - Nature This finding warrants comprehensive anatomic and functional disease mapping, germline testing, and referral to a multidisciplinary endocrine oncology center. The Lancet+2The LancetSupplementary appendix - The Lancetjacc2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA ... - JACCNatureManagement of phaeochromocytoma and paraganglioma in patients with germline SDHB pathogenic variants: an international expert Consensus statement | Nature Reviews Endocrinology
Molecular subtypes include pseudohypoxia, kinase-signaling, and Wnt-altered groups. Cluster 1 alterations involving SDHx, VHL, FH, EPAS1, and EglN/PHD2 activate hypoxia-inducible pathways; this biology has therapeutic relevance because HIF2alpha inhibition with belzutifan has been described as recently approved monotherapy for metastatic pheochromocytoma/paraganglioma after phase 2 trials. NatureNatureMetastatic progression of pheochromocytoma and paraganglioma occurs via parallel evolution | npj Precision Oncology
SDHx alterations have been associated with temozolomide response in small retrospective metastatic-disease series. NatureNatureMetastatic progression of pheochromocytoma and paraganglioma occurs via parallel evolution | npj Precision Oncology Treatment selection for metastatic disease should therefore incorporate germline and tumor molecular findings rather than rely on primary location alone. Nature+1NatureMetastatic progression of pheochromocytoma and paraganglioma occurs via parallel evolution | npj Precision OncologyNatureManagement of phaeochromocytoma and paraganglioma in patients with germline SDHB pathogenic variants: an international expert Consensus statement | Nature Reviews Endocrinology
Obtain genetic testing in metastatic or malignant pheochromocytoma/paraganglioma. The LancetThe LancetSupplementary appendix - The Lancet
Use Ga-DOTATATE PET/CT as an available functional imaging modality when mapping disease extent is needed. jaccjacc2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA ... - JACC
Treat reported belzutifan use for metastatic pheochromocytoma/paraganglioma as an advanced-disease, genotype-informed decision in a specialized oncology setting. NatureNatureMetastatic progression of pheochromocytoma and paraganglioma occurs via parallel evolution | npj Precision Oncology
References
- Pheochromocytoma and Paraganglioma — www.nejm.org · www.nejm.org
- Supplementary appendix - The Lancet — www.thelancet.com · www.thelancet.com
- Germ-Line Mutations in Nonsyndromic Pheochromocytoma — www.nejm.org · www.nejm.org
- International consensus statement on the diagnosis and ... - Nature — www.nature.com · www.nature.com
- 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC ... - JACC — www.jacc.org · www.jacc.org
- 2025 ACC/AHA/HRS/ISACHD/SCAI Guideline for the ... - JACC — www.jacc.org · www.jacc.org
- 2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA ... - JACC — www.jacc.org · www.jacc.org
- 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the Prevention, Detection, Evaluation, and Management of High Blood Pressure in Adults: Executive Summary: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines — www.jacc.org · www.jacc.org
- The Japanese Society of Hypertension Guidelines for the ... - Nature — www.nature.com · www.nature.com
- Metastatic progression of pheochromocytoma and paraganglioma occurs via parallel evolution | npj Precision Oncology — www.nature.com · www.nature.com
- Management of phaeochromocytoma and paraganglioma in patients with germline SDHB pathogenic variants: an international expert Consensus statement | Nature Reviews Endocrinology — www.nature.com · www.nature.com
- Focus on hereditary endocrine neoplasia - Cell Press — www.cell.com · www.cell.com
- Focus on hereditary endocrine neoplasia: Cancer Cell — www.cell.com · www.cell.com
- Pregnancy and phaeochromocytoma/ paraganglioma: clinical clues ... — obgyn.onlinelibrary.wiley.com · obgyn.onlinelibrary.wiley.com
- Poster Presentation : Indian Journal of Endocrinology and Metabolism — journals.lww.com · journals.lww.com
- Abstract : Tropical Gastroenterology - Ovid — journals.lww.com · journals.lww.com
- Diagnosis, treatment and outcome of... : Journal of Small Animal Practice — journals.lww.com · journals.lww.com
- Perioperative Management of Pheochromocytomas and ... — academic.oup.com · academic.oup.com
- Preoperative Management of the Pheochromocytoma Patient — academic.oup.com · academic.oup.com
- Pheochromocytoma and Paraganglioma: An Endocrine Society ... — academic.oup.com · academic.oup.com
- Pheochromocytoma/Paraganglioma: Review of Perioperative ... — onlinelibrary.wiley.com · onlinelibrary.wiley.com
- 54. Pheochromocytoma - Oxford Academic — academic.oup.com · academic.oup.com
- Perioperative considerations in patients with adrenal tumors — onlinelibrary.wiley.com · onlinelibrary.wiley.com
- Malignant Pheochromocytomas and Paragangliomas - FITZGERALD — nyaspubs.onlinelibrary.wiley.com · nyaspubs.onlinelibrary.wiley.com